Many people don’t know their purpose. It’s a daunting question, but we can all find a place to start. Say you like playing sports.
What do you like about sports? Was it the teamwork? Was it leading teammates? Is it the opportunity to teach someone?
Those are all abstractions that are more fundamental than sports. You can work in teams, lead others and teach in many contexts.
Once you settle on to one of those layers, you can peel it back again. You can continue this process and get to more fundamental values. The more you can do this, the more you can find enjoyment in everything you do. You can find ways to apply this purpose across different fields.
Your purpose is out there. It’s embedded in everything you’re doing and feeling. It’s your job to peel back the layers and find it.