I think Carl Jung has something to say about the psychic and inner universe that may shed some light He used the gnostic word "Pleroma" to discribe it:
“For my private use I call the sphere of paradoxical existence, that is, the instinctive consciousness, the Pleroma, a term borrowed from Gnosticism. The reflection and formation of the Pleroma in the individual consciousness produce an image of it (of like nature in a certain sense), and that is the symbol. In it all paradoxes are abolished. In the Pleroma, Above and Below lie together in a strange way and produce nothing; but when it is disturbed by the mistakes and needs of the individual a waterfall arises between Above and Below, a dynamic something that is the symbol. Like the Pleroma, the symbol is greater than man. It overpowers him, shapes him, as though he had opened a sluice that pours a mighty stream over him and sweeps him away.” Carl Jung, Letters
Many of these enties are cruel, and despotic, and some are wise and helpful, so be very careful.
Tibetan Buddhism has this to say about where they come from:
"Those realms too do not exist anywhere else, but lie in the four directions of your heart with the center as fifth, and now they emerge from within your heart and appear before you. Those images too do not come from anywhere else, but are the primordial spontaneous play of your mind, so recognize them in this way. Those images are neither large nor small, but perfectly proportioned".
In reality everything is an illusion, and at the same time everything exist, so while we may look at them as illusions just as evrything we experience with the mind is basically illusions, nevr the less they exist. so becareful, I think Sirona may have some good advice, I can't say for sure because I'm no expert,
