Lennon and McCartney get the justifiable credit as the song writing geniuses behind the Beatles. as such I think sometimes George Harrison does not get the credit he deserves. He wrote some of the most beautiful songs. Nearly every tune he penned is filled with love, emotion and thought. It was not in George to spend twenty minutes cranking out a pop song.
Some of Music's heavyweights covered this song:
I think Frank describes the song best in his intro.