When I’m unhappy, I feel like I’m doing life wrong. I’d rather be happy. But is happiness the point of life, or is there more to it? If I pursue happiness, mine first then for those around me, is that selfish? But if there’s a bigger purpose, then what about people with Alzheimer’s or dementia who can’t recall recent experiences or make plans?
Determine is an ambiguous word, here, so I’m going to break it into two parts:
You might discover that your actions are meaningful to others. Hedonic pleasure probably won’t be, but everyone is into something.
You decide if something is meaningful to yourself.
Something doesn’t have to have a purpose to b meaningful; and something doesn’t have to be meaningful to have a purpose, or at least, not meaningful outside of that purpose. I can appreciate the buffing leaves on a tree in spring without needing those specific leaves o that tree for anything. I have several wooden spoons that serve me well in the kitchen but if they disappeared tomorrow I wouldn’t notice or care.
To be clear: Meaning is internal, but purpose is some sort of external function, utility, or goal.