Egyptian Magic in Egyptian Magic by Florence Farr.

“It is clothed by a body or astral body, both before and after conception, possessed that power of radiation which formed the sphere of attraction round the human mother, which was sealed by the great Vulture-Mother-Force at the time of conception, and was withdrawn instantly to form the sphere or aura of the future human being—this is called the KHAIBT, or radiating aura.” [via]