If we ignore the literal reference to the heart and focus on the metaphor, the emotive based felt experience is biologically predisposed to parse the bad and remember the good. Do you see what I am saying?
Emptiness meets the metaphysics of optimism, wish-well thinking, the wellspring of creativity that begets the ah-ha moment of an action potential actualized is far from applied. Philosophy can do better. So can you. Apply yourself!