If you can backtrace the origin of every piece of crumb and speck of dust on your body, you will cease to exist (but you'll be reborn in a forest as a ball of dust).

Mentally trace every motherfucking piece of dust back to its origin in your mind. Every thread on your clothes. Every speck of dust in your hair, every crumb on your shirt, every speck of dust on the window (except for the dust that will be the dust that makes the new dustball you some day). <br><br>If you manage this, you will cease to exist, and you will be reborn in a forest as a little ball of dust.