spirits cant do the former one I mentioned to others its an entire rebirth of the soul on another individual, beings like lilith can do the other form of transmutation however.
youre mixing up the transmutation of the soul with a rebirth of the soul, a rebirth is a form of transmutation but it’s not the same that is commonly talked about.
The one I mentioned that involves a primordial deity is that they’re literally “rewriting” your soul while youre “inside” their being, the one commonly mentioned here is a transmutation where the soul is changed into something else but Lilith for example can make a person one of her succubus/incubus but you’re not being rebirthed through through her.
It’s pretty much like this:
If Nyx wanted you as in wanted you to be part of her family, she could force project you or you project to her, she could pass your being through her body, you’d pretty much be in her metaphorical womb youre going through a rebirth, I like to think of it as a cosmic egg situation.
With Lilith she alters your soul by external means not anything to do with the left foot or astral surgery, you’d be one of her many succubus/incubus but you wont share Lilith’s DNA like her direct children, she could make you like her direct children, ones who do not need to feed on sexual energy or she could make you like her succubus/incubus that need to, but in the end you wouldn’t really be her direct child just a child of hers.