The Current Age:
The medieval ages of darkness have passed away and this century of radiance has dawned, this century wherein the reality of things is becoming evident, wherein science is penetrating the mysteries of the universe, the oneness of the world of humanity is being established, and service to mankind is the paramount motive of all existence.
(`Abdu’l-Baha: Promulgation of Universal Peace, p. 369)

For every era hath a spirit; the spirit of this illumined era lieth in the teachings of Baha’u’llah. For these lay the foundation of the oneness of the world of humanity and promulgate universal brotherhood.
(`Abdu’l-Baha: Selections … `Abdu’l-Baha, p. 109)

As we view the world around us, we are compelled to observe the manifold evidences of that universal fermentation which, in every continent of the globe and in every department of human life, be it religious, social, economic or political, is purging and reshaping humanity in anticipation of the Day when the wholeness of the human race will have been recognized and its unity established. A twofold process, however, can be distinguished, each tending, in its own way and with an accelerated momentum, to bring to a climax the forces that are transforming the face of our planet. The first is essentially an integrating process, while the second is fundamentally disruptive. The former, as it steadily evolves, unfolds a System which may well serve as a pattern for that world polity towards which a strangely-disordered world is continually advancing; while the latter, as its disintegrating influence deepens, tends to tear down, with increasing violence, the antiquated barriers that seek to block humanity’s progress towards its destined goal. The constructive process stands associated with the nascent Faith of Baha’u’llah, and is the harbinger of the New World Order that Faith must erelong establish. The destructive forces that characterize the other should be identified with a civilization that has refused to answer to the expectation of a new age, and is consequently falling into chaos and decline.
(Shoghi Effendi: World Order of Baha’u’llah, p. 170)

The Past:
For a period of 6,000 years history informs us about the world of humanity. During these 6,000 years the world of humanity has not been free from war, strife, murder and bloodthirstiness. In every period war has been waged in one country or another and that war was due to either religious prejudice, racial prejudice, political prejudice or patriotic prejudice.
(`Abdu’l-Baha: Selections … `Abdu’l-Baha, p. 299)

From the beginning of human history down to this time the world of humanity has not enjoyed a day of absolute rest and relaxation from conflict and strife. Most of the wars have been caused by religious prejudice, fanaticism and sectarian hatred. Religionists have anathematized religionists, each considering the other as deprived of the mercy of God, abiding in gross darkness and the children of Satan. For example, the Christians and Muslims considered the Jews satanic and the enemies of God. Therefore, they cursed and persecuted them. Great numbers of Jews were killed, their houses burned and pillaged, their children carried into captivity. The Jews in turn regarded the Christians as infidels and the Muslims as enemies and destroyers of the law of Moses. Therefore, they call down vengeance upon them and curse them even to this day.
Consider what injuries, ordeals and calamities have been inflicted upon mankind since the beginning of history. Every city, country, nation and people has been subjected to the destruction and havoc of war. Each one of the divine religions considers itself as belonging to a goodly and blessed tree, the tree of the Merciful, and all other religious systems as belonging to a tree of evil, the tree of Satan. For this reason they heap execration and abuse upon each other. This is clearly apparent in books of historical record and prevailed until the time of the appearance of Baha’u’llah.
When the light of Baha’u’llah dawned from the East, He proclaimed the promise of the oneness of humanity. He addressed all mankind, saying, “Ye are all the fruits of one tree. There are not two trees: one a tree of divine mercy, the other the tree of Satan.” Again He said, “Ye are all the fruits of one tree, the leaves of one branch.” This was His announcement; this was His promise of the oneness of the world of humanity. Anathema and execration were utterly abrogated. He said, “It is not becoming in man to curse another; it is not befitting that man should attribute darkness to another; it is not meet that one human being should consider another human being as bad; nay, rather, all mankind are the servants of one God; God is the Father of all; there is not a single exception to that law. There are no people of Satan; all belong to the Merciful. There is no darkness; all is light. All are the servants of God, and man must love humanity from his heart. He must, verily, behold humanity as submerged in the divine mercy.”
(`Abdu’l-Baha: Promulgation of Universal Peace, p. 266)

Consider history. What has brought unity to nations, morality to peoples and benefits to mankind? If we reflect upon it, we will find that establishing the divine religions has been the greatest means toward accomplishing the oneness of humanity. The foundation of divine reality in religion has done this, not imitations of ancestral religious forms. Imitations are opposed to each other and have ever been the cause of strife, enmity, jealousy and war. The divine religions are collective centers in which diverse standpoints may meet, agree and unify. They accomplish oneness of native lands, races and policies. For instance, Christ united various nations, brought peace to warring peoples and established the oneness of humankind. The conquering Greeks and Romans, the prejudiced Egyptians and Assyrians were all in a condition of strife, enmity and war, but Christ gathered these varied peoples together and removed the foundations of discord – not through racial, patriotic or political power, but through divine power, the power of the Holy Spirit. This was not otherwise possible. All other efforts of men and nations remain as mere mention in history, without accomplishment.
(`Abdu’l-Baha: Promulgation of Universal Peace, p. 158)

The Need for Spiritual Civilization:
The winds of despair are, alas, blowing from every direction, and the strife that divideth and afflicteth the human race is daily increasing. The signs of impending convulsions and chaos can now be discerned, inasmuch as the prevailing order appeareth to be lamentably defective.
(Baha’u’llah: Gleanings, p. 216)

It is now the time in the history of the world for us to strive and give an impetus to the advancement and development of inner forces – that is to say, we must arise to service in the world of morality, for human morals are in need of readjustment. We must also render service to the world of intellectuality in order that the minds of men may increase in power and become keener in perception, assisting the intellect of man to attain its supremacy so that the ideal virtues may appear.
(`Abdu’l-Baha: Promulgation of Universal Peace, pp. 325-326)

That which was applicable to human needs during the early history of the race could neither meet nor satisfy the demands of this day and period of newness and consummation. Humanity has emerged from its former degrees of limitation and preliminary training. Man must now become imbued with new virtues and powers, new moralities, new capacities. New bounties, bestowals and perfections are awaiting and already descending upon him. The gifts and graces of the period of youth, although timely and sufficient during the adolescence of the world of mankind, are now incapable of meeting the requirements of its maturity. The playthings of childhood and infancy no longer satisfy or interest the adult mind.
From every standpoint the world of humanity is undergoing a reformation. The laws of former governments and civilizations are in process of revision; scientific ideas and theories are developing and advancing to meet a new range of phenomena; invention and discovery are penetrating hitherto unknown fields, revealing new wonders and hidden secrets of the material universe; industries have vastly wider scope and production; everywhere the world of mankind is in the throes of evolutionary activity indicating the passing of the old conditions and advent of the new age of reformation. Old trees yield no fruitage; old ideas and methods are obsolete and worthless now. Old standards of ethics, moral codes and methods of living in the past will not suffice for the present age of advancement and progress.
(`Abdu’l-Baha: Promulgation of Universal Peace, pp. 438-439)

The Dawn of Peace:
This is a new cycle of human power. All the horizons of the world are luminous, and the world will become indeed as a garden and a paradise. It is the hour of unity of the sons of men and of the drawing together of all races and all classes. You are loosed from ancient superstitions which have kept men ignorant, destroying the foundation of true humanity.
The gift of God to this enlightened age is the knowledge of the oneness of mankind and of the fundamental oneness of religion. War shall cease between nations, and by the will of God the Most Great Peace shall come; the world will be seen as a new world, and all men will live as brothers.
(`Abdu’l-Baha: Abdu’l-Baha in London, pp. 19-20)

The dark ages have disappeared, and the age of light has at last arrived. The Sun of Reality has dawned with supreme effulgence, the realities of things have become manifest and renewed, the mysteries of the unknown have been revealed, and great inventions and discoveries mark this period as a most wonderful age.
Through the ingenuity and inventions of man it is possible to cross the wide oceans, fly through the air and travel in submarine depths. At any moment the Orient and Occident can communicate with each other. Trains speed across the continents. The human voice has been arrested and reproduced, and now man can speak at long distances from any point. These are some of the signs of this glorious century. The great progress mentioned has taken place in the material world. Remarkable signs and evidences have become manifest. Hidden realities and mysteries have been disclosed. This is the time for man to strive and put forth his greatest efforts in spiritual directions. Material civilization has reached an advanced plane, but now there is need of spiritual civilization. Material civilization alone will not satisfy; it cannot meet the conditions and requirements of the present age; its benefits are limited to the world of matter. There is no limitation to the spirit of man, for spirit in itself is progressive, and if the divine civilization be established, the spirit of man will advance. Every developed susceptibility will increase the effectiveness of man. Discoveries of the real will become more and more possible, and the influence of divine guidance will be increasingly recognized. All this is conducive to the divine form of civilization. This is what is meant in the Bible by the descent of the New Jerusalem. The heavenly Jerusalem is none other than divine civilization, and it is now ready. It is to be and shall be organized, and the oneness of humankind will be a visible fact. Humanity will then be brought together as one. The various religions will be united, and different races will be known as one kind. The Orient and Occident will be conjoined, and the banner of international peace will be unfurled. The world shall at last find peace, and the equalities and rights of men shall be established. The capacity of humankind will be tested, and a degree shall be attained where equality is a reality.
All the peoples of the world will enjoy like interests, and the poor shall possess a portion of the comforts of life. Just as the rich are surrounded by their luxuries in palaces, the poor will have at least their comfortable and pleasant places of abode; and just as the wealthy enjoy a variety of food, the needy shall have their necessities and no longer live in poverty. In short, a readjustment of the economic order will come about, the divine Sonship will attract, the Sun of Reality will shine forth, and all phenomenal being will attain a portion.
(`Abdu’l-Baha: Promulgation of Universal Peace, pp. 101-102)

The age has dawned when human fellowship will become a reality.
The century has come when all religions shall be unified.
The dispensation is at hand when all nations shall enjoy the blessings of international peace.
The cycle has arrived when racial prejudice will be abandoned by tribes and peoples of the world.
The epoch has begun wherein all native lands will be conjoined in one great human family.
For all mankind shall dwell in peace and security beneath the shelter of the great tabernacle of the one living God.
(`Abdu’l-Baha: Promulgation of Universal Peace, p. 370)

The Unification of Humanity:
In cycles gone by, though harmony was established, yet, owing to the absence of means, the unity of all mankind could not have been achieved. Continents remained widely divided, nay even among the peoples of one and the same continent association and interchange of thought were wellnigh impossible. Consequently intercourse, understanding and unity amongst all the peoples and kindreds of the earth were unattainable. In this day, however, means of communication have multiplied, and the five continents of the earth have virtually merged into one. And for everyone it is now easy to travel to any land, to associate and exchange views with its peoples, and to become familiar, through publications, with the conditions, the religious beliefs and the thoughts of all men. In like manner all the members of the human family, whether peoples or governments, cities or villages, have become increasingly interdependent. For none is self-sufficiency any longer possible, inasmuch as political ties unite all peoples and nations, and the bonds of trade and industry, of agriculture and education, are being strengthened every day. Hence the unity of all mankind can in this day be achieved. Verily this is none other but one of the wonders of this wondrous age, this glorious century. Of this past ages have been deprived, for this century – the century of light – hath been endowed with unique and unprecedented glory, power and illumination. Hence the miraculous unfolding of a fresh marvel every day. Eventually it will be seen how bright its candles will burn in the assemblage of man.
Behold how its light is now dawning upon the world’s darkened horizon. The first candle is unity in the political realm, the early glimmerings of which can now be discerned. The second candle is unity of thought in world undertakings, the consummation of which will erelong be witnessed. The third candle is unity in freedom which will surely come to pass. The fourth candle is unity in religion which is the corner-stone of the foundation itself, and which, by the power of God, will be revealed in all its splendour. The fifth candle is the unity of nations – a unity which in this century will be securely established, causing all the peoples of the world to regard themselves as citizens of one common fatherland. The sixth candle is unity of races, making of all that dwell on earth peoples and kindreds of one race. The seventh candle is unity of language, i.e., the choice of a universal tongue in which all peoples will be instructed and converse. Each and every one of these will inevitably come to pass, inasmuch as the power of the Kingdom of God will aid and assist in their realization.
(`Abdu’l-Baha: Selections … `Abdu’l-Baha, pp. 31-32)

The ages of its infancy and childhood are past, never again to return, while the Great Age, the consummation of all ages, which must signalize the coming of age of the entire human race, is yet to come. The convulsions of this transitional and most turbulent period in the annals of humanity are the essential prerequisites, and herald the inevitable approach, of that Age of Ages, “the time of the end,” in which the folly and tumult of strife that has, since the dawn of history, blackened the annals of mankind, will have been finally transmuted into the wisdom and the tranquility of an undisturbed, a universal, and lasting peace, in which the discord and separation of the children of men will have given way to the worldwide reconciliation, and the complete unification of the divers elements that constitute human society.
This will indeed be the fitting climax of that process of integration which, starting with the family, the smallest unit in the scale of human organization, must, after having called successively into being the tribe, the city-state, and the nation, continue to operate until it culminates in the unification of the whole world, the final object and the crowning glory of human evolution on this planet. It is this stage which humanity, willingly or unwillingly, is resistlessly approaching.
(Shoghi Effendi: The Promised Day is Come, pp. 117-118)

The unity of the human race, as envisaged by Baha’u’llah, implies the establishment of a world commonwealth in which all nations, races, creeds and classes are closely and permanently united, and in which the autonomy of its state members and the personal freedom and initiative of the individuals that compose them are definitely and completely safeguarded. This commonwealth must, as far as we can visualize it, consist of a world legislature, whose members will, as the trustees of the whole of mankind, ultimately control the entire resources of all the component nations, and will enact such laws as shall be required to regulate the life, satisfy the needs and adjust the relationships of all races and peoples. A world executive, backed by an international Force, will carry out the decisions arrived at, and apply the laws enacted by, this world legislature, and will safeguard the organic unity of the whole commonwealth. A world tribunal will adjudicate and deliver its compulsory and final verdict in all and any disputes that may arise between the various elements constituting this universal system. A mechanism of world inter-communication will be devised, embracing the whole planet, freed from national hindrances and restrictions, and functioning with marvellous swiftness and perfect regularity. A world metropolis will act as the nerve center of a world civilization, the focus towards which the unifying forces of life will converge and from which its energizing influences will radiate. A world language will either be invented or chosen from among the existing languages and will be taught in the schools of all the federated nations as an auxiliary to their mother tongue. A world script, a world literature, a uniform and universal system of currency, of weights and measures, will simplify and facilitate intercourse and understanding among the nations and races of mankind. In such a world society, science and religion, the two most potent forces in human life, will be reconciled, will cooperate, and will harmoniously develop. The press will, under such a system, while giving full scope to the expression of the diversified views and convictions of mankind, cease to be mischievously manipulated by vested interests, whether private or public, and will be liberated from the influence of contending governments and peoples. The economic resources of the world will be organized, its sources of raw materials will be tapped and fully utilized, its markets will be coordinated and developed, and the distribution of its products will be equitably regulated.
National rivalries, hatreds, and intrigues will cease, and racial animosity and prejudice will be replaced by racial amity, understanding and cooperation. The causes of religious strife will be permanently removed, economic barriers and restrictions will be completely abolished, and the inordinate distinction between classes will be obliterated. Destitution on the one hand, and gross accumulation of ownership on the other, will disappear. The enormous energy dissipated and wasted on war, whether economic or political, will be consecrated to such ends as will extend the range of human inventions and technical development, to the increase of the productivity of mankind, to the extermination of disease, to the extension of scientific research, to the raising of the standard of physical health, to the sharpening and refinement of the human brain, to the exploitation of the unused and unsuspected resources of the planet, to the prolongation of human life, and to the furtherance of any other agency that can stimulate the intellectual, the moral, and spiritual life of the entire human race.
A world federal system, ruling the whole earth and exercising unchallengeable authority over its unimaginably vast resources, blending and embodying the ideals of both the East and the West, liberated from the curse of war and its miseries, and bent on the exploitation of all the available sources of energy on the surface of the planet, a system in which Force is made the servant of Justice, whose life is sustained by its universal recognition of one God and by its allegiance to one common Revelation – such is the goal towards which humanity, impelled by the unifying forces of life, is moving.
(Shoghi Effendi: World Order of Baha’u’llah, pp. 203-204)

…Whatever our shortcomings may be, and however formidable the forces of darkness which besiege us to-day, the unification of mankind as outlined and insured by the World Order of Baha’u’llah will in the fullness of time be firmly and permanently established. This is Baha’u’llah’s promise, and no power on earth can in the long run prevent or even retard its adequate realization.
(Shoghi Effendi: Lights of Guidance, p. 130)