A life without purpose is a life without soul. Empty, automatic, aimless, unsatisfying. The antidote to that is taking action to contribute to a meaningful cause. But how do you find your way to that? What got lost? When did it happen?
The only inkling we have that something might be wrong is that deep dissatisfying feeling we have that something is missing, or that we are capable of more but cannot seem to figure it out or find it.