from the darkness arises a new light, the stella matutina, which is at once the evening and the morning star—Lucifer, the light-bringer.
Edinger, drawing on Jung’s reading of Augustine, identifies the Morning Star with the alchemical stella matutina and with Lucifer as the light-bringer who emerges from the nigredo, making it the pivotal symbol of psychic renewal after the darkening of consciousness.
, Anatomy of the Psyche: Alchemical Symbolism in Psychotherapy, 1985thesis