A keen student of the Zoroastrian Scriptures, with illuminated mind, will be able to notice that every invocation that the holy Zarathustra has used is as if he prayed to the Light within to guide him by all evidences that Nature presented before him; to strengthen the conviction that all is of God, created by God and ruled by God. The mystical meaning of Ahura Mazda, upon whom Zarathustra called, is the Universal Breath.