Long Ago and Far Away Lyrics

Those golden rainbows end? Why is this song so sad?
Dreaming the dreams I've dreamed my friend, loving the love I love
to love is just a word I've heard when things are being said.
Stories my poor head has told me cannot stand the cold.
And in between what might have been and what has come to pass,
a misbegotten guess alas and bits of broken glass.

[ Lyrics from: http://www.lyricenter.com/e43508-james_taylor~long_ago_and_far_away_lyrics.html ]
Where do your golden rainbows end? Why is this song I sing so sad?
Dreaming the dreams I dream my friend, loving the love I love to love to love to love.