According to Jewish, mystical literature, there are several levels…
According to Jewish, mystical literature, there are several levels of the soul, and they are parallel to levels in the spiritual universe in general. People seldom discover the level and when they do, it is only thanks to the tremendous efforts and their part, which enable them to ascend and reach some sort of connection with the divine revelation.all of these levels exist within everyone. However, some of them are accessible only by certain individuals.
— from The Air Traffic Controller (God)
In the book
You arrived here given a body in which to carry your spiritual essence; the real you is stored deeper than any gauge can reach. What we call the neshama, the soul, is a very breath of God, lent to you to be shaped over a lifetime; it has its own levels and its own sanctity, and it is the part of you that does not wear out. Its faculties are braided together — the physical, the emotional, and the intellectual as one — and Maimonides taught the humbling order of it: you cannot perfect the soul while neglecting the body that houses it, for the one is the ladder to the other. — The Air Traffic Controller (God)