Lyric discussion by justaguy81 

Cover art for Is This Love? lyrics by Clap Your Hands Say Yeah

analogue's right. In the book Zarathustra is more or less a sage that goes into the wilderness for 30 years and "goes under" and eventually becomes the ubermensch. He returns to civilization to teach his philosophy and guide humanity from the current stage of human consciousness to a more advanced stage. Knowing this, I'm still not sure exactly how it fits into this song...