John Michael Greer said this quote

The attitude that psychologists call inflation and the traditional lore of Cabalistic magic, borrowing a term from religion, calls spiritual pride is one of the most serious dangers of this work.Those who enter the path of magic with too great an appetite for flattery or too strong a need for ego reinforcement will very likely find these things, but they are also rather too likely to find fanaticism, megalomania and mental breakdown along the same route. The thing has happened far too often in the history of magic in the West.