Our bodies could just be rocks on a beach, but whatever it is about us that is capable of observing the output of our own internal thinking (preventing us from just being p-zombies) is not contained within the beach.
This makes no sense at all as soon as you start trying to define where the internal/external line actually is.
I think you're being downvoted because you're announcing it as an absolute truth, of which we do not have evidence.
However I am open to your belief (and not on religious or theistic grounds which I assume many people might think you're talking about) because people have (non-religious) experiences that lend to such possibilities.
The "whatever" part, in strict terms, would be information. Jury is still out whether that is a fundamental component of the universe or not: https://www.pbs.org/wgbh/nova/article/is-information-fundame...