According to mystical belief, the sacred light of all the ages, which is "as the lightning which shineth from the west to the east." It is the halo that surrounds certain visions of a mystical nature. The celestial light can only be seen by those who have lived ascetically, when respiration is feeble, and life has almost left the body.
"Celestial Light." Encyclopedia of Occultism and Parapsychology. . Encyclopedia.com. (September 23, 2018). http://www.encyclopedia.com/science/encyclopedias-almanacs-transcripts-and-maps/celestial-light
"Celestial Light." Encyclopedia of Occultism and Parapsychology. . Retrieved September 23, 2018 from Encyclopedia.com: http://www.encyclopedia.com/science/encyclopedias-almanacs-transcripts-and-maps/celestial-light