It’s not that you must never, ever give up on your dreams, sometimes dreams don’t happen.
I once dreamt of living in Tokyo, for example. It never happened. It’s OK, I got over it. I found new dreams instead.
It’s when we lose the capacity to dream, I think, is when the rot seeps in. When we stop giving ourselves permission to make the world a better place, even on a modest scale.
It’s dreams that make life seem actually real to us.