"The Gates of Delirium" is the first track on Yes’s 1974 album, Relayer. The song is based on Leo Tolstoy's War and Peace, and it begins with a lengthy vocal section followed by a long instrumental section (beginning at about the 8 minute mark) representing a battle. The final section, occurring about 16 minutes in, released as a single in 1975 entitled "Soon", is a very gentle, soothing prayer for peace and hope which represents the aftermath of the battle. Before the release of Open Your Eyes, the reissue of Tales from Topographic Oceans and the release of Fly from Here, this was the longest officially released studio recording by the band with almost 22 minutes, taking up the entire first side of the LP.