A little piece of my mind:
I have always found it hard to define who you are as a person, and I believe that it is all those you interact with that know you best. Interestingly enough, we are not the same people every day, or in fact, with everybody we see. It is all extremely circumstantial. It depends on the day, on whom you see, on what music you hear, whether you shared a smile with a stranger, etc. All these factors alone don't say much, but combined they have the power to change who we are. But hold on because here comes the exciting part.
If you are aware and understand those factors and how they change, you can preset them yourself in a moment of lucidity (in the past they might have called this Enlightenment), and lay little breadcrumbs around you for your future self to follow. Just imagine that you had the power to stay happy everyday or to feel motivated to go to the Moon, wouldn't this be something worth pursuing?
Until next time!