Each band or level, being a particular manifestation of the electromagnetic spectrum, is what it is only by virtue of the other bands. The color blue is no less beautiful because it exits along side the other colors of a rainbow, and blueness itself depends upon the existence of the other colors, for if there were no color but blue, we would never be able to see it.

Collected Works of Ken Wilber: The spectrum of consciousness. No boundary. Selected essays (ed. 1999) - ISBN: 9781570625015