April 12

Know verily that the veil hiding Our countenance hath not been completely lifted. We have revealed Our Self to a degree corresponding to the capacity of the people of Our age. Should the Ancient Beauty be unveiled in the fullness of His glory mortal eyes would be blinded by the dazzling intensity of His revelation. 
(Baha’u’llah, quoted by Shoghi Effendi in a letter dated February 8, 1934; ‘The Dispensation of Baha’u’llah’)