Let me now solemnly declare:
Should I ever become a "spiritual teacher" (which is, ironically kind of likely), then my first sentences in every lecture or seminar will invariably be the following:
There is no such thing as a spiritual teacher, as nobody can ever be more advanced in spirituality than any other person. There is no such thing as "spiritual levels" or "spiritual achievements". One can have more experience with a certain method or technique; one can be more compassionate, or more wise, or more intelligent, or better at delivering roundhouse kicks. But one can never be the spiritual guide, or teacher, of another person.