No one can stop or control your thought process or your thinking. You can think anything you want. But that doesn’t seem to be the point. The thinking process has to be directed into a certain approach. That does not mean that it should be in accord with certain dogma, philosophy, or concepts. Instead, one has to know the thinker itself. So we are back to square one, the thinker itself: who or what thinks, and what is the thought process?
From “Back to Square One,” in True Perception: The Path of Dharma Art, page 141.