get in the way of seeing things
as they truly are
Admitting to this though can be difficult, especially when you are caught up in the excitement of a moment and realize, it is just a moment. That disappointment is often a cruel awakening of sorts, when you figure out that something you had hoped for is not what you thought it was.
While this is something that is trying to follow as a standard rule of thumb, it is useful to keep in mind and consider when things go one way and then another or if the general circumstances around you leave you filling disheartened or lost.