The Buddhist practice of Metta needs to be combined with the seven bojjhangas. These seven can relate to different levels of practice, depending on "object" relation. e.g. insight or serenity
The paradigm of practice is discerning skillful from unskillful heart states. We begin to turn away from the states that entangle the heart, and learn to linger in wholesome qualities. Skillful states always carry the mark of freedom.
