Purpose is less about motivation and more about meaning. It's what you would be doing anyway even if you didn't have to do it. You don't need the money from it to feel fulfillment. It's not about status. It's less about image and more about impact.
It's what brings you back to life after a hard day or experience. It's what drives you. It's your "why." It's more than just achieving goals or a set of To Do lists. It's what makes you happy. And it's about what you would do if fear wasn't a factor.