From Wikipedia
The song is considered significant in rock history because it marks the time period when psychedelic music began to form heavy metal. In 2009, it was named the 24th greatest hard rock song of all time by VH1.
A commonly related story says that the song's title was originally "In the Garden of Eden" but at one point in the course of rehearsing and recording, singer Doug Ingle became intoxicated and slurred the words, creating the mondegreen that stuck as the title.
