This originally was a love song with words, named after someone in my life. A few years later, I had to name it after someone else. A few years later, another name change was required, so I decided to change the basic concept.
I decided to change the words, and put into the song all the accumulated wisdom on the subject of love that I had gained up to that time. So I decided to make it an instrumental!
The chord progression is quite simple:
Of course, there is a lot going on in the piece, and you will notice the contrary motion between bass and melody in the chorus. The ethereal quality of the music is aided also by the suspension of non-chord tones for several beats (the notes A and F over the C chord for instance).