“Harmonious passion is related to having high levels of grit, whereas obsessive passion is not.23 If you’re obsessively passionate, you’re thinking short-term. You’re trying to force things to go your way. But you don’t truly want whatever it is you’re seeking. You just think you need it because you’re unresolved internally. Whether you get what you want or not, sooner or later you’ll shift that unhealthy need onto something else—the hedonic treadmill will continue. Similar to harmonious passion, intrinsic motivation is also related to having high levels of grit, whereas extrinsic motivation is not.24”