Ousía is what we call the essence of something, apart but also attached and essential to its physical form. To be something complete in the physical world, you need both the physical and the Ousía. Neither is more important than the other. One is not higher than the other. They are what makes something what it is. Something on someone’s Ousía is as unique as their physical form. It shares properties with the Ousía of similar things, but no two are the same.
