One

Jesus said to them: "When you make the two one, and when you make the inside like the outside, and the outside like the inside, and the upper like the lower, and when you make male and female into a single one, then you will enter the kingdom (of heaven)."
 The Gospel of Thomas

All spiritual wisdom warns us to be wary of, and not be fooled by the duality of this world, for it belongs only to this world of matter.