What happens to dark souls

[Diana]

The starting state is not 0, it's Unity. Zero is itself a distortion away from Unity.

Since all entities already have a higher-self, then there is a way for all entities to evolve. Otherwise, with the concept of reabsorbsion the higher-self would not exist.

So I conclude that all souls, no matter how dark, eventually gets there.

If you look at this concept through physicist David Bohm's holographic model, and the implicate and explicate universe, everything we know as reality is "extracted" or "collapsed" from the infinite field of possibilities, or as Ra puts it, intelligent infinity:

Ra: I am Ra. 
...
The intelligent infinity discerned a concept. This concept was discerned due to freedom of will of awareness. This concept was finity. This was the first and primal paradox or distortion of the Law of One. Thus the one intelligent infinity invested itself in an exploration of many-ness. Due to the infinite possibilities of intelligent infinity there is no ending to many-ness. The exploration, thus, is free to continue infinitely in an eternal present.

 
Everything which has form or specific meaning or application, all dimensions of existence, anything one can imagine would be a piece of the "manyness." This relates to the wave/particle (implicate/explicate) function, whereby the particle function is one possible outcome and the wave function represents all possible outcomes suspended with nothing chosen.

In addition, is could also be related to the mystical idea that this is all an illusion, since the underlying source of all, or ultimate truth is that of the unmanifested, wave-like source, rather than what has been derived from it, which is by nature limited due to being "collapsed" from the whole.

So, from this point of view, if something has been manifested or explicated from the implicate universe, it follows logically that it can be reabsorbed, or go back into, that source. It cannot be lost, as it is a manifestation, a tiny piece of the whole. It can only go back to the unmanifested source. Otherwise, where would it go?