There is a strange door in the soul which only opens in the presence of one voice and one guitar. It can be another instrument, but it’s usually a guitar. Usually acoustic. The door is old. Many have sat outside it, idly strumming, hoping one day it might open for them, too.
At the end of The Martian, Matt Damon’s stranded astronaut turned dapper professor gives an inspiringly light hearted speech to a group of young astronauts who are about to begin their training for the next manned mission to mars. He says something like this: