What is hope?

The first time I watched this movie, I thought it was merely one feeling that keeps people going and stops them from giving up. But when I saw one book called Atomic Habits, the author also mentioned hope and considered it as something somewhat useless that only young and unsophisticated people have. His opinion on hope prompts me to meditate on the idea of hope. And finally, it occurs to me that hope should be something that is accumulated from one's life experience and then develops into something equal to confidence with which under any circumstances one can deal with everything. And maybe that's what Andy really harbours in his heart and that's what I want to pursue.