Just as John, who was closely related to the Essenes, baptized the penitents in the Jordan in the open air, so also the Mandæi, whose connection with the Essenes is extremely probable, used to perform baptisms in flowing water only, on which account they were also called "the Christians of John" in later times. This custom among them was obviously connected with the fact that Hibil Ziwâ, who was venerated by them as a Redeemer, was a form of Marduk, and the latter was a son of the great Water-God, Ea; he thus incorporated the healing and cleansing powers of water in himself. On the other hand, as has been already said, the "anointing" of the God in the Agni Cult with milk, melted butter, and the fluid Soma, served to strengthen the vital powers of the divine child and to bring the sparks slumbering in the fire-wood to a blaze. There is no doubt that this idea was also present in the baptism as it was usually practised in the mystic cults. By baptism the newly admitted member was inwardly "enlightened." Often enough, too, for example, in the Mysteries of Mithras, with the ceremony there was also associated the actual flashing forth of a light, the production of the Cult God himself manifested in light. [197] By this means the faithful were "born again," in the same way as Agni was "baptized" at his birth, and thereby enabled to shine forth brightly and to reveal the disorder of the world hidden in the darkness. "The world was swallowed up, veiled in darkness, Light appeared, when Agni was born." [198] "Shining brightly, Agni flashes forth far and wide, He makes everything plain in splendour." [199]