Don't think that if life is destroyed, you have failed because there is happiness right there. It's not a fake thing that is negated because of some state of an objective world. The efforts you make aren't real unless they manifest as some kind of consequence in the external world. I'm also not claiming solipsism. Either, I'm not claiming that our minds are the real true thing and the external world is just a consequence of it. And so we have to be very careful when we find ourselves holding on to those perspectives.