One of Sadhguru Vasudev’s lectures inspired this line of questioning within myself.

“Have you ever experienced anything outside of yourself?”

I see the outside world and I have an experience of it being outside of myself.

Yes indeed you do. However, where do you experience that seeing of the outside world, inside of yourself or on the outside?

Furthermore, have you ever experienced anything outside of yourself?

Furthermore, if all that can be experienced in this world gets experienced inside of oneself, is there truly anything that is outside of oneself?

Furthermore, who is the one that is experiencing this experience?

Furthermore, can you go deeper and ask who is the one who is aware of the one experiencing the experience of this?

I AM that I AM.
I AM (the experience of this) I AM.