"When the dog bites, when the bee stings,
When I'm feeling sad,
I think of a few of my favorite things,
And then I don't feel so bad."
— The Sound of Music, "My Favorite Things."
Times are tough. Your Love Interest has just been eaten by a Grue, you only had enough anti-venom to save one of your three adopted children, your hometown just got glassed by the Big Bad's Kill Sat, and to top it off you just dropped your ice cream. Life absolutely sucks.
But just when you're feeling your lowest, you conjure up your happiest thoughts, and suddenly, you're smiling again. It can be that time Jeff got really trashed at the office party, your favorite song, mental images of a litter of puppies, whatever - the point it's enough of a mental pick-me-up to keep you from being swallowed by despair.