Check out these excerpts from the introduction I wrote on Mahamudra:
Imagine you own a sword fashioned of pure diamond which can slice through to the blazing heart of reality. This sword, however, is sheathed in layers of ignorance and is your own mind, your own consciousness. The poisons that dull its brilliance are delusions about the ultimate nature of reality, poisons that begin to form from our first moments of consciousness, when we begin to see all things as fixed in their nature — beautiful and ugly, cruel and kind, good and bad.
Feelings spring forth from this world-view. We learn to like and dislike, to desire and to push away, to crave and to seek escape. This gives rise to an uncontrollable stream of thoughts, often resulting in heedless words and actions.
Then, when our physical body dissolves back into the elements, our mindstream lives on, impregnated with the seeds of these habitual patterns. We are forced to take birth again, and the great wheel makes another turn. We suffer, age and die, again and again and again, trapped in defective worlds of our own creation.
Is there a way out of this madness? Yes! If we transform the way we think, speak and act, the movie of our relative life transforms too: Karma metamorphoses into a benevolent producer intent on giving us a blissful role, using her power to create a paradise for us to play within. Karma is compelled to act in this manner because the world is “empty”, because there is no base reality, because it is our thoughts, words and actions alone that fashion our reality.
Mahamudra is the systematic stripping of ignorance that all of us must undertake at some point in our eternal timeline. If we succeed in eliminating poisons that incline us to perceive ugliness instead of beauty, we are in a position to construct heaven. The stakes are incredibly high — eons of suffering if we don’t clean up the mess, luminous immortality if we do.