Last month, I wrote about John Darnielle of the folk rock band the Mountain Goats. Now a full month later, I am still listening to his music on a regular rotation, so I want to talk about another of his songs. He is an excellent lyricist, often coming up with clever analogies to help sell his stories. This is on display in the song “Autoclave” from Heretic Pride, where he describes his heart as an autoclave. For those unaware, an autoclave is a device that uses pressurized steam to sterilize glassware and surgical implements for medical and scientific purposes.