I'm sure you've heard people talk about their Heart's Desire—well that's a load of rot. Hearts are idiots. They're big and squishy and full of daft dreams. They flounce off to write poetry and moon at folk who aren't worth the mooning. Bones are the ones that have to make the journey, fight the monster, kneel before whomever is big on kneeling these days. Bones do the work for the heart's grand plans. Bones know what you need. Hearts only know want.
Catherynne M. Valente (2014). “The Fairyland Series”, p.402, Feiwel & Friends