Lyric discussion by Unidan 

Cover art for Peace On Earth lyrics by U2

At the end you can clearly hear "Daaaisy.. daaaaisy.." For those who have read/watched Arthur C Clarke's "2001: A Space Odyssey" the HAL 9000 artificial intelligence utters this poem as his last message before he's taken offline. In 2001, the main character Dave Bowman becomes the "star child" and sends out a wave of calm and peace upon the earth. So this song is a bit of a tribute to 2001, in addition to having other meanings as seen on this page.