"Yes, the River Knows" is a psychedelic rock ballad written collectively by Jim Morrison, Robby Krieger, Ray Manzarek, and John Densmore, first released on The Doors' 1968 album Waiting for the Sun. The composition is distinguished by its ethereal, flowing quality, with a gentle melody that evokes themes of surrender and mysticism through wave-like vocal phrasing. The song builds gradually from verse to chorus without abrupt transitions, creating a sense of continuous motion that mirrors the river imagery at the heart of Morrison's lyrics. Layered keyboards and subtle guitar work provide atmospheric harmonic support beneath the vocals, while backing vocals from the band members add harmonic depth to the arrangement. The piece stands apart from the harder-edged material on Waiting for the Sun, serving as a contemplative counterpoint to the album's hit single "Hello, I Love You." As a deep cut rather than a single, the song has remained closely tied to The Doors' catalog and has not become a widely covered standard, though a 50th anniversary deluxe edition of the album released in 2018 included a rough mix that offered listeners an alternate perspective on the recording. The composition exemplifies the band's ability to channel introspective, meditative moods within their psychedelic rock framework.