Unlike any and every other belief system in this or any other universe, nonduality is absolute. Perfectly black and white, no shades of gray. Any attempt to bring it down to our size, even to the least degree, can only be the work of Maya, which is to say, our own deep and indwelling desire that things be other than they are. Of course, nonduality is not a system and has nothing to do with belief, but you get the idea.