“Recite ye the verses of God every morn and eventide.” (Bahá’u’lláh, ‘The Kitáb-i-Aqdas’)

March 21

Praise be unto Thee, O Lord my God! This is that Day among Thy Days and that Hour among Thy blessed Hours which Thou hast reserved for Thine own Self, related to Thine own Being, and exalted in station, that Thy Name may endure and Thy sovereignty be made manifest. Thou hast made this Day to be the source of all days, inasmuch as Thou hast showered upon it the revelations of the Throne of Thy majesty and the signs of Thy transcendent favour. Thou hast created it anew, at this time, in the most excellent form in this ancient Temple, so that on this Day, and by its grace, all the dwellers of earth and heaven might be raised again to life and, unbeknownst to and unapprehended by all, be called upon to render account regarding Thy Self. Perchance Thy sacred and celestial blessings and Thy divine and glorious bestowals might be completed therein, that they may testify to the creation of all things on the Day of Thy presence and to the appearance of Thy days and the dawning of the Sun of Thy beauty. 
- Baha’u’llah  (‘Days of Remembrance’)