I think, therefore I am.

I think, therefore I am = my inner world is a reflection of my external reality or the second I die, all brain processes and consciousness ceases to exist so the subjective Self identified as Josh ceases to exist.
“I think” may mean the formulation of my supposed life goals/ meaning of life/ dreams/ what I want, which then leads to exist in the way that I am. Or I think, therefore I am may refer to the multiple Selves, where one part of the Ego is involved in thinking, the other Ego is involved in existing much like how the person that I am now is very different to the person I am in a workplace or when I am stressed.