On a run this morning I was thinking about music. I occasionally post music I like and I never get the response I expect. I think other people will respond or feel the way I do about the song. But they don't and that's because they don't associate the images and memories to the song that I do. I've also listened to other peoples music, and sometimes I don't think much of it. For the same reason.
I know that title is from a Stevie Wonder album, but it's not one of my favorites. I just like the title. To me it explains why we like the music we do. We associate it with, usually, with pleasant memories.