Buddhist texts do not exaggerate when they say that our greatest enemy is clinging to a self. Why? We are caught in a situation where mind is incapable of directly experiencing its own essential emptiness, and instead posits a self that must be sustained. We thus develop all the needs and wants that must be gratified in order to maintain such a self. Suffering comes from the endless search to satisfy what cannot be satisfied. “I” leads to “I am” which leads to “I want” and so on.
– Kalu Rinpoche