Spontaneous Euphoria is the phenomenon when you're doing a seemingly normal routine, and all of a sudden you get hit by a random wave of extreme happiness. Studies show that the chance of spontaneous euphoria may increase greatly while doing something positively nostalgic.
*Your friend suddenly stops walking*
You: Hey, man, what's wrong?
Friend: *shakes his head* Oh, nothing, I just got a wave of spontaneous euphoria
America's leading cause of sleep deprivation: When you're up at 3:00 A.M. still trying to fall asleep and your mind hits the phase of "Who am I? What do I mean? Why am I the way I am? How can I make myself better?" and you look at yourself from point of view if your mind's eye.
Recent hypotheses suggest that daily sessions of voluntary intraocular self observation could lead to a better world, with less crap from teenagers complaining about why they don't have the new iPhone, or that they don't have starbucks.
Hey, man, i'm so tired.. My brain decided to have an all night session of Intraocular Self Observation last night. It said "Nope, you're not sleeping, we're thinking about you tonight"