“Essence of Essences,” the “Sea of Seas,”

It should be remembered, however, that apart from the miracle associated with
the Báb’s execution, He, unlike the Founder of the Christian religion, is not only to be regarded as the independent Author of a divinely revealed Dispensation, but must also be recognized as the Herald of a new Era and the Inaugurator of a great universal prophetic cycle...
The Báb, acclaimed by Bahá’u’lláh as the “Essence of Essences,” the “Sea of Seas,” the “Point round Whom the realities of the Prophets and Messengers revolve,” “from Whom God hath caused to proceed the knowledge of all that was and shall be,” Whose “rank excelleth that of all the Prophets,” and Whose “Revelation transcendeth the comprehension and understanding of all their chosen ones,” had delivered His Message and discharged His mission.
He Who was, in the words of ‘Abdu’l-Bahá, the “Morn of Truth” and “Harbinger of the Most Great Light,” Whose advent at once signalized the termination of the “Prophetic Cycle” and the inception of the “Cycle of Fulfillment,”...

Shoghi Effendi, God Passes By P.58