"This is the Day, O my Lord, which Thou didst announce unto all mankind as the Day whereon Thou wouldst reveal Thy Self ..."

"This is the Day, O my Lord, which Thou didst announce unto all mankind as the Day whereon Thou wouldst reveal Thy Self, and shed Thy radiance, and shine brightly over all Thy creatures. Thou hast, moreover, entered into a covenant with them, in Thy Books, and Thy Scriptures, and Thy Scrolls, and Thy Tablets, concerning Him Who is the Day-Spring of Thy Revelation, and hast appointed the Bayán to be the Herald of this Most Great and all-glorious Manifestation, and this most resplendent and most sublime Appearance.

And when the world’s horizon was illumined, and He Who is the Most Great Name was manifested, all disbelieved in Him and in His signs, except such as have been carried away by the sweetness of Thy glorification and praise. There befell Him what must remain inscrutable to everyone except Thee, Whose knowledge transcendeth all who are in Thy heaven and all who are on Thy earth.

Thou well knowest, O my God, that the Revealer of the Bayán (the Báb) hath commanded all mankind concerning Thy Cause, and Thy Revelation, and Thy Sovereignty. He hath said, and sweet is His speech: “Beware lest the Bayán and its Letters keep you back from Him Who is the Most Merciful and from His sovereignty.” He, moreover, hath written: “Were He to produce no more than one verse, ye must not deny Him. Haste ye towards Him, that haply He may cause to descend upon you what He pleaseth, as a token of His grace unto you. He truly is the Possessor of His servants, and the King of creation.”

Thou seest, then, O Thou Who art the Beloved of the world and the Revealer of the Most Great Name, how He hath come down with the kingdom of His signs, and in a manner that hath caused the atoms of the earth to testify that the whole world hath been filled with these signs. And yet, notwithstanding this most manifest and all-glorious Revelation, and these signs which none can appraise except Thee, O Thou the King of names, Thou beholdest how they have broken off from Him Who is the Day-Spring of Thine Essence, and have caviled at the One Who is the Fountain-Head of Thy wisdom and of Thine utterance. They were so seized with thirst for fame, that they rejected Thy tokens, and Thy testimonies, and Thy signs, which every man of insight perceiveth in whatsoever declareth Thy greatness, and Thy sovereignty, and acknowledgeth Thy Revelation and Thy might. They have so traduced Him as to cause the inmates of the all-glorious Tabernacle and the Concourse on high to lament, and have uttered such calumnies against Him that the souls of Thy chosen Ones and the hearts of them that are dear to Thee have melted. They have erred so grievously that they cast away Thy most resplendent signs, and clung to their idle fancies, O Thou Who art the Possessor of Names and the Lord of the Throne on high and of earth below!

Thou art, O my God and the Exultation of my heart, the One Who hath adorned Thy Tablet, of which none is aware except Thee, with the mention of this Day which Thou didst call after Thy name, that haply none may on that day be seen save Thy most august Self, and naught else be brought to mind except Thy most sweet remembrance."

-Bahá'u'lláh, Prayers and Meditations by Bahá’u’lláh, CLXXVI, pp. 275-277