Expectations are the worst thing to happen to humans since, well I don't know, they're bad. So many people go into situations with expectations for what is going to happen. If they expectations are met or exceeded, great! What a phenomenal experience. But what happens when those expectations aren't met? The person is already so emotionally invested in the event that they expected to happen that they miss all of the other wonderful things and possibilities spinning around them. And I think that it is much more sad for someone to miss out on all of those things around them than for their initial expectation not to have been met.

This isn't in relation to anything specific, just a fairly recent realization.