Have you ever thought about Purpose?
Purpose is something different for everyone.
We chatted in the OP community for over an hour and I’m not even sure I gained ground, but we made a great effort!
To me, it seems purpose is something like:
Doing something in the consensus reality that provides subjectively good qualia or happiness in one’s internal reality.
A description of a motive or path which gives direction in moments of indecision, a reminder based on a summation of values (which derive from DNA/culture/experience/environment/moods/emotions).
A fulfillment- and potential-maximizing statement (assuming a long life).