The mind is like an ocean where thoughts constantly rise and fall like waves. Though these mind waves are countless, Sage Patanjali classifies them into five categories: cognition, misconception, imagination, sleep and memories. By understanding them, we obtain a better picture of our mind. We come to understand how the mind, our greatest enemy on the path of enlightenment, is ironically also the only instrument to achieve it. This wisdom helps us to explore the Truth that transcends the mind.
By Shri Siddhartha Krishna.