Well, the foundation of Christianity is the establishment of a source of hope that transcends the tragedies and corruption of the prime material plane. That hope is incredible source of strength for many. I think it's an interesting examination of people to understand where they derive hope from, and just IME for many it's their spiritual belief system. "What gives you hope (about humanity, the world, your personal life, your family, etc.)" always seems like an enjoyable conversation. To the extent that one feels and internalizes gratitude I think is also strongly correlated to hopefulness, just IME.