There were some ideas that Lilith, describes how & where we cut away our pretensions (gemini ),false roles & delusions (neptune),& actualize our true essential self.Even though she may hover between mortal & immortal realms.
Healing arises when we enter into the darkness,release our pain, & to purify our toxic accumulations.
And we must not forget what Pythagorus speculated.
That Lilith or as they termed it then ( Antichthon ) was that dark planet which moved in the same orbit as earth did,yet always opposite & behind the sun.