Two things have to be learned in this quest. The first is the art of mind-stilling, of emptying consciousness of every thought and form whatsoever. This is mysticism or Yoga... The second is to grasp the essential nature of the ego and of the universe and to obtain direct perception that both are nothing but a series of ideas which unfold themselves within our minds. This is the metaphysics of Truth. The combination of these two activities brings about the realization of his true Being as the ever beautiful and eternally beneficent Overself. This is philosophy.

Source: The Notebooks of Paul Brunton