We are training our hearts, not just our minds, with this practice. The heart needs training because it isn't constituted to always feel lovingkindness. By nature, it also contains ill will, rejection, resentment, and fear. But unless we diminish the hate and enlarge the love by doing something about it in our daily lives, we have no chance of experiencing the peaceful feeling that lovingkindness generates in the heart. And when we start to do this practice, we begin to get a sense—even just a tiny one at first—of freedom.
