Tehran, the city loved by Bahá’u’lláh, city of His birth and His happy youth, and where later, chained three flights underground in the Black Pit, He received His mantle of prophethood. ‘In thee’, He addresses Tehran, ‘the Unseen hath been revealed, and out of thee hath gone forth that which lay hid from the eyes of men… Let nothing grieve thee … for God hath chosen thee to be the source of the joy of all mankind.”[1]
[1. Bahá’u’lláh, Gleanings, no. LV, p. 109, and no. LVI, p. 110.] (Marzieh Gail, Arches of the Years, p. 8)