In reality also its a dilemma and most of the people are still unsure about what their purpose is and I think a clarity can only be possible if one look inward and ask himself what exactly the core strength and area of happiness for a person is and then only he can arrive at a conclusion.
Thank you and Have a great day.
I believe that your purpose is aligned with your talents and gifts but like you said you have to look inward to get an idea of these things.