Life is like a hillside, when you go up, you see the peak, what unfolds in front of you is the terrible downhill, and the end point leads to death. When we go uphill, we walk hard and slowly, but when we go downhill, we are very fast. When we are young, everyone is full of beautiful fantasies about the future, although in the end they all get nothing. In old age, people no longer have any hope, only waiting... Death comes.