I felt invincible. 

Nothing can hurt me. Nothing can sway me. 

It's an inexplicable feeling that doesn't usually last very long. Certain things trigger it - some music, some of the time; standing alone on a trail surrounded by an endless plain, looking ahead; and whatever it was I did today, probably working out.

The feeling that there is something that endures, that will endure, that has endured forever. This is the thing that cannot be touched. This is the thing that I am a part of even after I'm gone. It's like - touching infinity.