High on Fire's smokingly brutal piece of sludge mastery 'Fertile Green' begins with a memorable drum beat, which occurs as a repetitive theme throughout the 'De Vermis Mysteriis' album.

The album explores the time-traveling journey of Jesus Christ's stillborn brother as he attempts to discover how his twin became a religious icon … but even without the concept in mind, 'Fertile Green' is a pummeling metal opus.