When someone falls in love, it’s rare that they’ve planned to fall in love with their person. Another quote, “the heart wants what it wants,” is another way to express this. This, to me, is asserting how much control we don’t have over falling in love. Being in love with someone, and vice versa, is a moment of falling, of not having control. The use of lovers being “puppets” only gives me the idea of being controlled by another force. The heartstrings control the lovers, simply “showing” them who to fall in love with.