It's not that this is wrong. It's very correct. But as I had felt, there is something about this level development. Not all of the undead gods reached level 6/higher bodhisattva, Astrael seems firm at level 5. This puzzled me a bit, but I also felt like this was by choice, that levels aren't just about height of achievement, but more of a circulation. You can go all the way to the 7th chakra in terms of enlightenment level, but circulate back down again on the other side and then choose to stay at regular bodhisattva because it suits your methodology better.
This appeared to be true, the "Goetians" are like this. They look infernal and many of them stay there, but they went all the way around and decided that the higher heavens weren't for them, so they settled as kings in hell instead.
The Queen, many of you know her by different names. How far she went... it's possibly incomprehensible for anyone else. She told me that learning the 27 katas of shotokan karate was beneficial, because they form a system which opens the energy channels of the body. But she also said not to focus on that because the return is diminishing. I should focus on improving other parts and if I later find myself lacking I can come back and learn more of them.
I feel like this is indicative of how "levels" function. Out of the undeads I've interacted most with, Illkeserod is at level 6 and "the other one" whom I met before knowing any names, looks to be at level 5, or enlightenment level 2. But she seems way stronger than that. It didn't make sense, but with this understanding it does.
One does not even need to gain any enlightenment level on this plane, but can move into the next scale at once, if able to grasp how. Most practitioners on the path prefer to have some kind of power within the area of saving souls, sharing principles and guiding disciples however, so they learn skills in this plane. But it's not necessary to be a buddha or any specific title.
The next step is to realize your inner self. The free will space of your soul, which no one else can effect. In return, this part of you also cannot have direct influence on your surroundings. Within this space your have total control. It's pure safety, and one can stay there forever. But most do not want to, and cannot imagine this level of practice. The indirectness of this place's function truly means that
"you cannot see or touch it, but only know it through its manifestations" as Lao Tsu said about the Dao.