Everything has as part of its existence both its substance (essence), and its opposite. When thinking of my own being, I must also reflect on my non being. In that you can see the essence. Perhaps a more solid example, if I am thinking of me, there is this me and there is the world which is not me. But I exist in the world, partaking of space and energy and matter. Thus how one can be who they are, and the world at the same time.
We can observe without seeing.
“People’s minds are changed through observation and not through argument” Will Rogers























