How can we be sure what we are?
how can you ensure that you are matter, or how you can ensure that you psyche.
We know that mass is all that occupies a place, and the psyche is all that is personality, mind, beliefs, etc.
I believe that humans are, body, mind and spirit, this means that we are matter and psyche at the same time. Matter because we occupy a space, we are physical, and psyche because our brain produces thoughts.
We are both, is meant to complement, our body is what allows us to feel things, perceive things, and our minds, our psyche is what allows us to think, analyze, and keep those things. The two form an equilibrium.
These are forms of percive the human, some people think we're just physical, as there are those who say the physical part is our body, which covers us and the mind is what we produce.