Of the principles enshrined in these Tablets the most vital of them all is the principle of the oneness and wholeness of the human race, which may well be regarded as the hall-mark of Bahá’u’lláh’s Revelation and the pivot of His teachings. Of such cardinal importance is this principle of unity that it is expressly referred to in the Book of His Covenant, and He unreservedly proclaims it as the central purpose of His Faith. “We, verily,” He declares, “have come to unite and weld together all that dwell on earth.” “So potent is the light of unity,” He further states, “that it can illuminate the whole earth.” “At one time,” He has written with reference to this central theme of His Revelation, “We spoke in the language of the lawgiver; at another in that of the truth seeker and the mystic, and yet Our supreme purpose and highest wish hath always been to disclose the glory and sublimity of this station.” Unity, He states, is the goal that “excelleth every goal” and an aspiration which is “the monarch of all aspirations.” “The world,” He proclaims, “is but one country, and mankind its citizens.” He further affirms that the unification of mankind, the last stage in the evolution of humanity towards maturity is inevitable, that “soon will the present day order be rolled up, and a new one spread out in its stead,” that “the whole earth is now in a state of pregnancy,” that “the day is approaching when it will have yielded its noblest fruits, when from it will have sprung forth the loftiest trees, the most enchanting blossoms, the most heavenly blessings.” He deplores the defectiveness of the prevailing order, exposes the inadequacy of patriotism as a directing and controlling force in human society, and regards the “love of mankind” and service to its interests as the worthiest and most laudable objects of human endeavor. He, moreover, laments that “the vitality of men’s belief in God is dying out in every land,” that the “face of the world” is turned towards “waywardness and unbelief”; proclaims religion to be “a radiant light and an impregnable stronghold for the protection and welfare of the peoples of the world” and “the chief instrument for the establishment of order in the world”; affirms its fundamental purpose to be the promotion of union and concord amongst men; warns lest it be made “a source of dissension, of discord and hatred”; commands that its principles be taught to children in the schools of the world, in a manner that would not be productive of either prejudice or fanaticism; attributes “the waywardness of the ungodly” to the “decline of religion”; and predicts “convulsions” of such severity as to “cause the limbs of mankind to quake.” The principle of collective security He unreservedly urges; recommends the reduction in national armaments; and proclaims as necessary and inevitable the convening of a world gathering at which the kings and rulers of the world will deliberate for the establishment of peace among the nations.