 The Leslie speaker treatment applied to Lennon's vocal originated from his request that Martin make him sound like he was the Dalai Lama singing from the top of a high mountain.Reising describes "Tomorrow Never Knows" as the inspiration for an album that "illuminates a path dedicated to personal freedom and mind expansion".He views the song's message as a precursor to the more explicitly political statements the Beatles would make over the next two years, in "All You Need Is Love" and "Revolution".