The practice of metta brings five wonderful qualities into our Dhamma practice. It makes the heart softer and more responsive; it purifies the heart; it brings us into connection with all of life; it develops concentration; and it leads to happiness. Lovingkindness is the quality of friendliness toward oneself and others developed through the practice of metta. This talk describes how the practice works as a protection, a healing, a purification of heart, and a boundless state of mind.