Someone said: “We cannot change our past. We can not change the fact that people act in a certain way. We can not change the inevitable. The only thing we can do is play on the one string we have, and that is our attitude.”
Arguably, the essence of life is to have fun and play, and to do so as much as possible. And of course, it’s the only way to avoid the brooding and melancholy which will kill us over the long run. Attitude and mindset, but tailored towards fun and play as much as possible.