The Total Perspective Vortex, from Douglas Adams' The Hitchhiker's Guide to the Galaxy

Anyone who has stared up at the night sky on a clear night and tried to wrap their mind around the size of our planet, the Sun, the solar system, our galaxy, and then the hundreds of billions of galaxies beyond that may have felt like their mind might explode (or despair at the sheer insignificance of their life choices).

According to the Hitchhiker's Guide to the Galaxy, the Total Perspective Vortex was designed to condense all the knowledge of the universe into a single moment, wherein a person would finally understand their place in the vast cosmos. Remember, that the universe is so mind-numbingly huge that anything imaginable can happen.

Instead of being enlightened by this moment of clarity, understanding the sheer magnitude of the universe and insignificance of one's perspective compared to all of that completely annihilates one's brain. An invisible dot on an invisible dot living in a tiny fraction of an eyeblink of the universe.

"You can kill a man, destroy his body, break his spirit, but only the Total Perspective Vortex can annihilate a man's soul."