This early work, revealed during Bahá’u’lláh's sojourn in Baghdad, deals with a number of subjects including the continuity of Divine Revelation.
Gems of Divine Mysteries can be read in full at the Bahá’í Reference Library. Some extracts are shared below.
Should there be ignited in thy heart the burning brand of the love of God, thou wouldst seek neither rest nor composure, neither laughter nor repose, but wouldst hasten to scale the highest summits in the realms of divine nearness, sanctity, and beauty. Thou wouldst lament as a soul bereaved and weep as a heart filled with longing. Nor wouldst thou repair to thy home and abode unless God would lay bare before thee His Cause.
O thou who hast soared to the realm of guidance and ascended to the kingdom of virtue! Shouldst thou desire to apprehend these celestial allusions, to witness the mysteries of divine knowledge, and to become acquainted with His all-encompassing Word, then it behoveth thine eminence to inquire into these and other questions pertaining to thine origin and ultimate goal from those whom God hath made to be the Wellspring of His knowledge, the Heaven of His wisdom, and the Ark of His mysteries. For were it not for those effulgent Lights that shine above the horizon of His Essence, the people would know not their left hand from their right, how much less could they scale the heights of the inner realities or probe the depths of their subtleties! We beseech God therefore to immerse us in these surging seas, to grace us with the presence of these life-bearing breezes, and to cause us to abide in these divine and lofty precincts. Perchance we may divest ourselves of all that we have taken from each other and strip ourselves of such borrowed garments as we have stolen from our fellow men, that He may attire us instead with the robe of His mercy and the raiment of His guidance, and admit us into the city of knowledge.
Whosoever entereth this city will comprehend every science before probing into its mysteries and will acquire from the leaves of its trees a knowledge and wisdom encompassing such mysteries of divine lordship as are enshrined within the treasuries of creation. Glorified be God, its Creator and Fashioner, above all that He hath brought forth and ordained therein! By God, the Sovereign Protector, the Self-Subsisting, the Almighty! Were I to unveil to thine eyes the gates of this city, which have been fashioned by the right hand of might and power, thou wouldst behold that which none before thee hath ever beheld, and wouldst witness that which no other soul hath ever witnessed. Thou wouldst apprehend the most obscure signs and the most abstruse allusions, and wouldst clearly behold the mysteries of the beginning in the point of the end. All matters would be made easy unto thee, fire would be turned into light, knowledge and blessings, and thou wouldst abide in safety within the court of holiness.
It is recorded in all the Books of the Gospel that He Who is the Spirit spoke in words of pure light unto His disciples, saying: “Know that heaven and earth may pass away, but my words shall never pass away.” As is clear and evident to thine eminence, these words outwardly mean that the Books of the Gospel will remain in the hands of people till the end of the world, that their laws shall not be abrogated, that their testimony shall not be abolished, and that all that hath been enjoined, prescribed, or ordained therein shall endure forever.
O My brother! Sanctify thy heart, illumine thy soul, and sharpen thy sight, that thou mayest perceive the sweet accents of the Birds of Heaven and the melodies of the Doves of Holiness warbling in the Kingdom of eternity, and perchance apprehend the inner meaning of these utterances and their hidden mysteries. For otherwise, wert thou to interpret these words according to their outward meaning, thou couldst never prove the truth of the Cause of Him Who came after Jesus, nor silence the opponents, nor prevail over the contending disbelievers. For the Christian divines use this verse to prove that the Gospel shall never be abrogated and that, even if all the signs recorded in their Books were fulfilled and the Promised One appeared, He would have no recourse but to rule the people according to the ordinances of the Gospel. They contend that if He were to manifest all the signs indicated in the Books, but decree aught besides that which Jesus had decreed, they would neither acknowledge nor follow Him, so clear and self-evident is this matter in their sight.
Alas, alas, for that which befell Him Who was the Manifestation of the Self of God, and for that which He and His loved ones were made to suffer! The people inflicted upon them what no soul hath ever inflicted upon another, and what no infidel hath wrought against a believer or suffered at his hand. Alas, alas! That immortal Being sat upon the darksome dust, the Holy Spirit lamented in the retreats of glory, the pillars of the Throne crumbled in the exalted dominion, the joy of the world was changed into sorrow in the crimson land, and the voice of the Nightingale was silenced in the golden realm. Woe betide them for what their hands have wrought and for what they have committed!
Hearken then unto that which the Bird of Heaven uttered, in the sweetest and most wondrous accents, and in the most perfect and exalted melodies, concerning them—an utterance that shall fill them with remorse from now unto “the day when mankind shall stand before the Lord of the worlds”: “Although they had before prayed for victory over those who believed not, yet when there came unto them He of Whom they had knowledge, they disbelieved in Him. The curse of God on the infidels!” Such indeed are their condition and attainments in their vain and empty life. Erelong shall they be cast into the fire of affliction and find none to help or succour them.
O thou who art standing before My Throne and yet remain unaware thereof! Know thou that whoso seeketh to scale the summits of the divine mysteries must needs strive to the utmost of his power and capacity for his Faith, that the pathway of guidance may be made clear unto him. And should he encounter One Who layeth claim to a Cause from God, and Who holdeth from His Lord a testimony beyond the power of men to produce, he must needs follow Him in all that He pleaseth to proclaim, command and ordain, even were He to decree the sea to be land, or to pronounce earth to be heaven, or that the former lieth above the latter or below it, or to ordain any change or transformation, for He, verily, is aware of the celestial mysteries, the unseen subtleties, and the ordinances of God.
Were the peoples of every nation to observe that which hath been mentioned, the matter would be made simple unto them, and such words and allusions would not withhold them from the Ocean of the names and attributes of God. And had the people known this truth, they would not have denied God’s favours, nor would they have risen against, contended with, and rejected His Prophets. Similar passages are also to be found in the Qur’án, should the matter be carefully examined.
Know, moreover, that it is through such words that God proveth His servants and sifteth them, separating the believer from the infidel, the detached from the worldly, the pious from the profligate, the doer of good from the worker of iniquity, and so forth. Thus hath the Dove of holiness proclaimed: “Do men think when they say ‘We believe’ they shall be let alone and not be put to proof?”
It behoveth him who is a wayfarer in the path of God and a wanderer in His way to detach himself from all who are in the heavens and on the earth. He must renounce all save God, that perchance the portals of mercy may be unlocked before his face and the breezes of providence may waft over him. And when he hath inscribed upon his soul that which We have vouchsafed unto him of the quintessence of inner meaning and explanation, he will fathom all the secrets of these allusions, and God shall bestow upon his heart a divine tranquillity and cause him to be of them that are at peace with themselves. In like manner wilt thou comprehend the meaning of all the ambiguous verses that have been sent down concerning the question thou didst ask of this Servant Who abideth upon the seat of abasement, Who walketh upon the earth as an exile with none to befriend, comfort, aid, or assist Him, Who hath placed His whole trust in God, and Who proclaimeth at all times: “Verily we are God’s, and to Him shall we return.”
Know thou of a truth that the seeker must, at the beginning of his quest for God, enter the Garden of Search. In this journey it behoveth the wayfarer to detach himself from all save God and to close his eyes to all that is in the heavens and on the earth. There must not linger in his heart either the hate or the love of any soul, to the extent that they would hinder him from attaining the habitation of the celestial Beauty. He must sanctify his soul from the veils of glory and refrain from boasting of such worldly vanities, outward knowledge, or other gifts as God may have bestowed upon him. He must search after the truth to the utmost of his ability and exertion, that God may guide him in the paths of His favour and the ways of His mercy. For He, verily, is the best of helpers unto His servants. He saith, and He verily speaketh the truth: “Whoso maketh efforts for Us, in Our ways shall We assuredly guide him.” And furthermore: “Fear God and God will give you knowledge.”
If thou be of the inmates of this city within the ocean of divine unity, thou wilt view all the Prophets and Messengers of God as one soul and one body, as one light and one spirit, in such wise that the first among them would be last and the last would be first. For they have all arisen to proclaim His Cause and have established the laws of divine wisdom. They are, one and all, the Manifestations of His Self, the Repositories of His might, the Treasuries of His Revelation, the Dawning-Places of His splendour, and the Daysprings of His light. Through them are manifested the signs of sanctity in the realities of all things and the tokens of oneness in the essences of all beings. Through them are revealed the elements of glorification in the heavenly realities and the exponents of praise in the eternal essences. From them hath all creation proceeded and unto them shall return all that hath been mentioned. And since in their inmost Beings they are the same Luminaries and the self-same Mysteries, thou shouldst view their outward conditions in the same light, that thou mayest recognize them all as one Being, nay, find them united in their words, speech, and utterance.
O My brother! Forsake thine own desires, turn thy face unto thy Lord, and walk not in the footsteps of those who have taken their corrupt inclinations for their god, that perchance thou mayest find shelter in the heart of existence, beneath the redeeming shadow of Him Who traineth all names and attributes. For they who turn away from their Lord in this day are in truth accounted amongst the dead, though to outward seeming they may walk upon the earth, amongst the deaf, though they may hear, and amongst the blind, though they may see, as hath been clearly stated by Him Who is the Lord of the Day of Reckoning: “Hearts have they with which they understand not, and eyes have they with which they see not.…” They walk the edge of a treacherous bank and tread the brink of a fiery abyss. They partake not of the billows of this surging and treasure-laden Ocean, but disport themselves with their own idle words.
Would that pure and stainless hearts could be found, that I might impart unto them a sprinkling from the oceans of knowledge which My Lord hath bestowed upon Me, so that they may soar in the heavens even as they walk upon the earth and speed over the waters even as they course the land, and that they may take up their souls in their hands and lay them down in the path of their Creator. Howbeit, leave hath not been granted to divulge this mighty secret. Indeed, it hath been from everlasting a mystery enshrined within the treasuries of His power and a secret concealed within the repositories of His might, lest His faithful servants forsake their own lives in the hope of attaining this most great station in the realms of eternity. Nor shall they who wander in this oppressive darkness ever attain unto it.
Wing then thy flight unto this divine Tree and partake of its fruits. Gather up that which hath fallen therefrom and guard it faithfully. Meditate then upon the utterance of one of the Prophets as He intimated to the souls of men, through veiled allusions and hidden symbols, the glad-tidings of the One Who was to come after Him, that thou mayest know of a certainty that their words are inscrutable to all save those who are endued with an understanding heart. He saith: “His eyes were as a flame of fire”, and “brass-like were His feet”, and “out of His mouth goeth a two-edged sword”. How could these words be literally interpreted? Were anyone to appear with all these signs, he would assuredly not be human. And how could any soul seek his company? Nay, should he appear in one city, even the inhabitants of the next would flee from him, nor would any soul dare approach him! Yet, shouldst thou reflect upon these statements, thou wouldst find them to be of such surpassing eloquence and clarity as to mark the loftiest heights of utterance and the epitome of wisdom. Methinks it is from them that the suns of eloquence have appeared and the stars of clarity have dawned forth and shone resplendent.
Behold, then, the foolish ones of bygone times and those who, in this day, await the advent of such a being! Nor would they ever bear allegiance unto him except that he appear in the aforementioned form. And as such a being will never appear, so too will they never believe. Such indeed is the measure of the understanding of these perverse and ungodly souls! How could those who fail to understand the most evident of the evident and the most manifest of the manifest ever apprehend the abstruse realities of the divine precepts and the essence of the mysteries of His everlasting wisdom?
How can a true lover continue to exist when once the effulgent glories of the Beloved are revealed? How can the shadow endure when once the sun hath shone forth? How can a devoted heart have any being before the existence of the Object of its devotion? Nay, by the One in Whose hand is my soul! In this station, the seeker’s complete surrender and utter effacement before his Creator will be such that, were he to search the East and the West, and traverse land, sea, mountain and plain, he would find no trace of his own self or of any other soul.