Self vs. Other

I imagine my body and I imagine the surrounding landscape. I observe the sensations of the body, but the landscape I observe only through the impressions it leaves on my senses. The body I call Self - the landscape I call Other.

Go back further. I imagine my mind and I imagine my body. I apprehend the thoughts of the mind directly, but the sensations of the body must be made conscious for me to apprehend them. The mind I call Self - the body I call Other.

Deeper still, the thoughts come when they want. The mind works, what is conscious becomes conscious without any input of mine, and the thoughts pop up. The mind I call Other - what then is the Self? Only the perception.