Be warned. This song The Circle Game can make you cry. Just made me cry right now.
The lovely melody and the poignant lyrics however make this song the perfect lullaby for an old soul like me.
Interestingly, Neil Young inspired the song according to this article — http://www.openculture.com/2014/02/james-taylor-and-joni-mitchell-live-and-together-1970.html
Video from YouTube