Your Body

One way to more accurately percieve your body is that it's actually an environmental encounter suit that your soul wears on Earth.

Most of it's functions are automatic - heartbeat, breathing, digestion, cell growth, etc - which leaves you free to sit back at the controls and pilot it.

It works at a specific range of temperatures and pressures.

Basically, your body is like a dalek shell in Doctor Who.
You are ethereal/astral creature that makes use of it.