We can carefully observe and ask ourselves a question: Where is my heart? Is it in the physical heart itself? In which specific part of the heart? In a particular cell? Or is it in the brain? In which part of the brain? Left or right side? Where do our countless emotions and thoughts come from? From the heart? If so, from which specific part? This is a very profound question, worthy of your contemplation and exploration for a very long time. 

Our hearts are free from greed, resentment, and delusion. They are not attached to anything. We let our hearts rest naturally in their original state, which is pure, bright, empty, and void of defilements. We protect this state.