During the Báb’s confinement in the fortress of Chihríq, where He spent almost the whole of the two remaining years of His life, the Lawḥ-i-Ḥurúfát (Tablet of the Letters) was revealed, in honor of Dayyán—a Tablet which, however misconstrued at first as an exposition of the science of divination, was later recognized to have unravelled, on the one hand, the mystery of the Mustagháth, and to have abstrusely alluded, on the other, to the nineteen years which must needs elapse between the Declaration of the Báb and that of Bahá’u’lláh.
- Shoghi Effendi (Chapter 2, ‘God Passes By’)