" We are all accustomed to hearing in spiritual circles that "All is One" and that the heart of our problem as human beings is an ignorance of this oneness. "Cease to dualities" they often say, "and perceive the underlying unity." But is this true? And can it withstand philosophical rigor? In this essay I attempt to show that it the position of nonduality or monism is both philosophically untenable and spiritually unnecessary. Did I succeed?"