I found this in my notes and I believe it’s a quote from Sam Harris but I don’t remember. Either way, found it thought provoking so wanted to share.
The quality of your mind determines the quality of your life. Happiness and suffering no matter how extreme are mental events. The mind depends upon the body of course and the body upon the world but everything good or bad that happens in your life must appear in consciousness to matter. This fact offers ample opportunity to make the best of bad situations because changing how you respond to the world is often as good as changing the world
This is not to say that external circumstances don’t matter but it is your mind rather than the circumstances themselves which determine the quality of your life.