Mick Jagger, 1978: "That's a dream song. Those kinds of songs with kinds of dreamy sounds are fun to do, but not all the time - it's nice to come back to reality."

In an interview with The Wall Street Journal's Marc Myers, Jagger explained the creation of the song: "I also came up with an Oriental-Indian riff on my acoustic guitar. At some point during the tour I played it for Mick Taylor, because I thought he would like it. At that point, I really hadn't intended on recording the song. Sometimes you don't want to record what you're writing. You think, 'This isn't worth recording, this is just my doodling.'

"When we finished our European tour in October 1970, we were at Stargroves... We were sitting around one night and I started working on what I had initially written. I felt great. I was in my house again and it was very relaxing. So the song became about that - looking forward to returning from a foreign place while looking out the window of a train and the images of the railway line going by in the moonlight."