Why do people feel troubled and suffer? Ultimately, it all comes down to their unwillingness to face the present as it is.
And the reason they refuse to face the present is that they live inside their thoughts.
In your thoughts, you might step outside and find a million yuan. In reality, you step outside and get splashed by a passing bicycle.
Naturally, negative emotions erupt. That's what happens when you live in your thoughts instead of in the present.
So you are always hoping for something, and the moment those hopes go unmet, suffering is inevitable.
Whether we choose to avoid things or face them, we must take responsibility for everything that is ours.