music has charms to soothe the savage breast

The phrase "music has charms to soothe the savage breast" is a line from the play "The Mourning Bride" by William Congreve. It suggests that music has the power to calm and pacify even the most savage or aggressive emotions within a person. It implies that the soothing and calming effect of music has the ability to transform or release the inner turmoil and aggression present in one's heart or mind.