Eloy Santos, those are some good questions you asked in the top post. I too have been looking to find answers, the truth. When I read Theresa Talea's book "Eternal Humans and the Finite gods" (3rd edition), it helped me to understand a lot more, in fact, now I could better understand the Nag Hammadi Library (the one Natalie left a link to up above) which I had read through and continue to study, before I found the Theresa Talea (T.T.) book.
In the T.T. book I found out who "Christ" is. It's the first Krystar, and the Krystars that followed. They were created in the beginning after All That Is, The Pure Essence and Eia came out, that is, Father and Mother. The Highest Selves came out next, which is with the Krystar, in the first domain, which is called "A" domain. The beginning of the development of the creation in a "form" would have begun next, in the same domain, but it's the lowest level of that first domain, called "Cosminyahas" level. And that is truly only the beginning of "form" because it comes together throughout the later levels and domains of the eternal realms.
The next domain is called the "Eckasha - Ah." That is where the music of sound came through or was developed, which is vibration. And that is where, in the first level, called "CosMa'yah realm, is where the Krysthal Spiral stream originated, in this level. This is what began the process of creation throughout all the other levels, expanding. The Krysthal Spiral is what takes the living energy of the All That Is, The Pure Essence, and moves it throughout all the levels, because everyone needs this life-force-energy in order to exist. It's the Essence of a being. And through the Krysthal Spiral, which spread out in a pattern throughout the domains, we have what we can call a tree of life. The trunk is the spiral and the branches and leaves are the life forms that have developed from that trunk. And there are many trees, but all of them from the same Source. So when we stay in the tree, we can develop our potentials since we have the eternal life force energy supporting us. And we can learn to create and share and grow and be in full enjoyment of life with each other.
But those who have fallen, may have fallen not from their own will, but other's bad intentions, and those who are willfully fallen are those who have removed themselves from the Essence, which one needs in order to exist. And they are the ones who have caused others, who didn't want to fall, to be fallen. It's complicated. One needs that pure Essence natural energy to stay protected. Because the evil ones cannot endure that pure Essence natural energy, it rips them apart. They work through millions and billions of years just to destroy a creation so they could feed off it. It takes many, many steps to make someone vulnerable to them.
So if they have done that, removed themselves from the Pure Essence, and found that they cannot exist, then they would start vampirizing on those who are with Essence, hence they steal others' energy. All this started afterwards. In the last domain, called Ecka, before the PHYSICAL worlds began in the Veca, such as our Milky Way Galaxy is in the Veca. But all is connected...except for those who have removed themselves and are fallen.
The Levels of the Domains are: "A"; "Eckasha-Ah"; "Eckasha-Aah"; "Eckasha-1"; "Eckasha-A": "Eckasha": "Ecka"; and "Veca."
So, there's a lot to learn and study when you want to know. But the best place to start is to know yourself better. Who are you, how do you operate, how do you feel, how do you think, etc. Because to know yourself is to know the truth. That way you can tell the difference between the truth and the lie/deception, which will help you to continue in the right direction, prevent you from becoming deceived. This Milky Way galaxy is partially phantom, and therefore, the matter energy that we are dealing with here has some natural pure essence energy, and some dead phantom energy which is a predator trying to steal the pure essence energy from those structures and those entities that have it. You do realize that all molecular structure is alive, because it's what builds the structures. Therefore you can find out how to expand and develop outside of the illusion that all is matter, when it is not so. Everything came from the invisible Pure Essence energy first, before it was developed into forms that we have here, in the physical structure.
Anyway. It's a lot to talk about. But you can start by reading somethings that I have found fit together so they can be understood much easier. I'm doing my research as I go, as well. You need to develop your powers of mind, of reason, of comprehension, etc, because an ignorant person will not be able to avoid the predators who have invented the prison system. That's why you need to learn.
So this one: "The Paraphrase of Shem" and "The Book of Thomas The Contender" can help you to see what is being taught by the savior in this place. You also use your own experiences and memories, thoughts, in order to compare, so you get a better idea, and further your own knowledge.
Some principles that Gurdjieff and Ouspensky taught are helpful, as are some of the principles Don Juan taught, of the Carlos Castaneda books. It's everywhere, but you have to at least know how to find some of the truth, in order to attract more of it. Those who are evil only attract evil and darkness, as you'll read about in The Book of Thomas The Contender.