According to Castaneda, we are prisoners of a “predator” that came from outside, and it could be compared to a parasitic attack, or to a symbiosis in a bad way, that was not necessarily required for our “evolution.”
Exactly, and it ties into what Rudolf Steiner said:
Therefore, the opportunity exists – a short time before we are born, not long before we are born – for another spiritual being besides our soul to take possession of our body, of the unconscious part of our body. It is this way; a short time before we are born we are permeated by another being – in our terminology we would call it an Ahrimanic spirit being. This is within us in the same way that our own soul is within us.
These beings who spend their life by using human beings, in order to be able to be in the sphere where they want to be. These beings have an extraordinarily high intelligence and a significantly developed will but no warmth of heart at all. Nothing of what we call the human “Gemut”. And we go through life, my dear friends, in such a way that we have our souls and a Double of this kind, who is much more clever, very much more clever than we are, who is very intelligent, but has a Mephistophelian intelligence, and an Ahrimanic intelligence, and also an Ahrimanic will, a very strong will, a will that is much more akin to the nature forces than is our human will, which is controlled by the mind and the heart. […]
These beings of high intelligence, but of purely Mephistophelian intelligence, and with a will more related to nature than can be said of the human will, these beings once decided out of their own will that they did not want to live in that world in which they were destined to live by the wisdom-filled of the higher hierarchies. They wanted to conquer Earth; they need bodies, for bodies of their own they do not have. They use as much of the human bodies as they can use, because the human soul cannot entirely fill up the human body.
You see, as the human body develops, these beings are able to enter into it at a definite time before the human being is born, and below the threshold of our consciousness they accompany us. They cannot endure one thing in human life, they positively cannot endure it, and that is death. Therefore they must always leave this human body in which they have established themselves before it succumbs to death. They continue to have a very great delusion, for they want to be able to remain in human bodies beyond death. That would be a very great achievement in the kingdom of these beings but that they have not yet achieved. […]
In the coming centuries it will have to come to man’s knowledge more and more that he bears such a Double within him — such an Ahrimanic – Mephistophelian Double. Man must know it. […]
It’s also worth mentioning that when Steiner says, “the human soul cannot entirely fill up the human body,” that means emotional traumas through shock and abuse or chemical traumas through drugs like LSD can fracture off parts of the soul, leaving even more of a void for these Ahrimanic forces to inhabit. Spiritless people are the emptiest of all, and so they like a public bicycle they can be ridden by any number of forces at any time. But even spirited people who suffer soul fragmentation can come under these influences more readily, just not to the same degree or as often.
This is basically the same thing as entity attachment and demonic possession, though the latter is the highest degree of that phenomenon. The mistake is in thinking that either you’re projectile vomiting and talking backwards in Latin, or you’re free of possession. It’s not black and white like that. As Steiner said, there is a base level or default version of it that we are born with, which resides in the back of our minds as what Freudian psychology would call the Id-Ego complex. It’s our internal prison warden keeping us locked into the Matrix Control System.
As Don Juan explained to Castaneda:
In order to keep us obedient and meek and weak, the predators engage themselves in a stupendous maneuver-stupendous, of course, from the point of view of a fighting strategist. A horrendous maneuver from the point of view of those who suffer it. They gave us their mind! Do you hear me? The predators give us their mind, which becomes our mind. The predators” mind is baroque, contradictory, morose, filled with the fear of being discovered any minute now. I know that even though you have never suffered hunger, you have food anxiety, which is none other than the anxiety of the predator who fears that any moment now its maneuver is going to be uncovered and food is going to be denied. Through the mind, which, after all, is their mind, the predators inject into the lives of human beings whatever is convenient for them. And they ensure, in this manner, a degree of security to act as a buffer against their fear.