The major part of Jewish tradition holds that while there are methods to achieve many great and even holy powers on many levels, the question is, what use is it?
Clairvoyance, levitation, “second sight”—it was a firm belief that all these are possible on a certain path of development.
The question is, should there be what is called a systematic, well-taught way of spiritual growth per se?
What is the aim?
Let’s say that I grow twice or three or ten times bigger in a spiritual way.
The only thing that makes this worthwhile is the worship of God and not spiritual growth.
The spiritual growth may be an outcome.
–Rabbi Adin Steinsaltz