Why Do We Build Castles In The Sky?

This morning on the way to work I found myself not only listening to the original mix of Ian Van Dahl's 2001 dance hit "Castles in the Sky", but thinking about it more deeply than I ever had before and then that internally tied back to my recent and ongoing infatuation with the second stanza of W.B. Yeats poem "He Wishes For the Cloths of Heaven". The original version of the song is a rather generic early 2000's pop Euro-trance track with a forgettable video, but the version below is actually significantly cooler than the original despite its being a recent remix. Listen to the lyrics! They ask a reasonable question!