Dreaming or Giving

why does dmb's song, dreaming tree, remind me so much of shel silverstein's book, the giving tree? they aren't necessarily depicting the same story, but they both evoke the same feeling in me. perhaps it's the following lines from the song?

below it he would sit
for hours at a time
now progress takes away
what forever took to find
now he's falling hard
he feels the falling dark
how he longs to be
beneath his dreaming tree
conquered fear to climb
a moment froze in time
when the girl who first he kissed
promised him she'd be his
remembered mother's words
there beneath the tree
"no matter what the world
you'll always be my baby"

*ponder*