What is your reason to live?

What is the most important thing to you in life that keeps you going?<br><br>&#x200B;<br><br>EDIT 2: The response is overwhelming. I'm trying my best to reply everyone. I'd like to thank everybody that has commented so far. You guys have given me a lot to think about.<br><br>EDIT: I suffer from severe depression and am thinking of ending it all. I want to hear your stories and what keeps you going and what kept you going through the tough times.