Farshid Kazemi. Celestial Fire: Bahá'u'lláh as the Messianic Theophany of the Divine Fire in Zoroastrianism (2013). Heat is used as a symbol of the dynamic nature of motion and existence, and in a tablet to the Zoroastrians, Bahá'u'lláh says that fire is a symbol of the Primal Will personified in the Manifestations. This paper explores such symbolism in the Gathas. Articles.