I’m not depressed (at the moment, well maybe a little), just feeling philosophical.
Edit: the idea of this came to me because I was pondering why people fight so hard to beat diseases and live a few more years. What are they planning to do? Why exert effort just to be here longer when you don’t have a reason?
Just why?
Other people.
Make connections in your little circle/tribe; make people happy. It’s our biology, it’s what we evolved to do, and it’s what you leave behind.