In a more explicit language Bahá’u’lláh testifies to this truth [“the progressiveness of Divine Revelation”] in one of His Tablets revealed in Adrianople: “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.”
- Shoghi Effendi (‘The Dispensation of Baha’u’llah; included in ‘The World Order of Baha’u’llah’)