Is There an Essence to Non Duality?

There's an argument to be made from the post modernist view that there is no such such thing as essence. Essence is a convenient way of speaking, I don't think we want to overly reify it right? If we want to really say what's metamodernism or post post modernism or integral theory,. It's got to be more post modern than the post modern. And then you come to a more spiritual and existential position. So I'm not in a position to say there are no essences that's too dogmatic. But that was covered right.