A dynamic process, divinely propelled, possessed of undreamt-of potentialities, world-embracing in scope, world-transforming in its ultimate consequences, had been set in motion on that memorable night when the Báb communicated the purpose of His mission to Mullá Ḥusayn in an obscure corner of _Sh_íráz. It acquired a tremendous momentum with the first intimations of Bahá’u’lláh’s dawning Revelation amidst the darkness of the Síyáh-_Ch_ál of Ṭihrán. It was further accelerated by the Declaration of His mission on the eve of His banishment from Ba_gh_dád. It moved to a climax with the proclamation of that same mission during the tempestuous years of His exile in Adrianople. Its full significance was disclosed when the Author of that Mission issued His historic summonses, appeals and warnings to the kings of the earth and the world’s ecclesiastical leaders. It was finally consummated by the laws and ordinances which He formulated, by the principles which He enunciated and by the institutions which He ordained during the concluding years of His ministry in the prison-city of Akká. To direct and canalize these forces let loose by this Heaven-sent process, and to insure their harmonious and continuous operation after His ascension, an instrument divinely ordained, invested with indisputable authority, organically linked with the Author of the Revelation Himself, was clearly indispensable. That instrument Bahá’u’lláh had expressly provided through the institution of the Covenant, an institution which He had firmly established prior to His ascension. This same Covenant He had anticipated in His Kitáb-i-Aqdas, had alluded to it as He bade His last farewell to the members of His family, who had been summoned to His bed-side, in the days immediately preceding His ascension, and had incorporated it in a special document which He designated as “the Book of My Covenant,” and which He entrusted, during His last illness, to His eldest son ‘Abdu’l-Bahá. Written entirely in His own hand; unsealed, on the ninth day after His ascension in the presence of nine witnesses chosen from amongst His companions and members of His Family; read subsequently, on the afternoon of that same day, before a large company assembled in His Most Holy Tomb, including His sons, some of the Báb’s kinsmen, pilgrims and resident believers, this unique and epoch-making Document, designated by Bahá’u’lláh as His “Most Great Tablet,” and alluded to by Him as the “Crimson Book” in His “Epistle to the Son of the Wolf,” can find no parallel in the Scriptures of any previous Dispensation, not excluding that of the Báb Himself. For nowhere in the books pertaining to any of the world’s religious systems, not even among the writings of the Author of the Bábí Revelation, do we find any single document establishing a Covenant endowed with an authority comparable to the Covenant which Bahá’u’lláh had Himself instituted.