The human experience is full of great stuff like creativity, miracles, connection with others, laughter and dark chocolate. And because we evolve through contrast, our experience also includes challenging situations and things we may not put in the "great stuff" category. I call them expectation hangovers.
But the good news about the not so great stuff is that we have what it takes to let go of anything and everything that happens. The suffering from our expectation hangovers does not have to be permanent.