Answer: There is a purpose for this—it gives a person freedom. As one develops, he can smoothly interpret all spiritual work either within our world or within the spiritual world in accordance with his growth.
I also asked myself these questions, and tried to put it all out in my first books, at least in a very simple way. But there is no language in the world that can simply describe spiritual actions and everything that is written in the Torah.
From the Kabbalah Lesson in Russian 4/1/18