Just as a car is simply a sum total of all its parts, so too is the imagined separate self a sum total of thoughts, themselves being imaginary.
Here's a Nondual pointing exercise to try. Take the example of a character in a play...
The character in the play does not exist until apparently brought to life by the actor.
The character is not only the physical appearance but the sum total of emotions, ways of thinking, idiosyncrasies, traumas, etc...
None of which actually exist!
They only appear to, thanks to the actor.
The actor is entirely free to drop the character at any time and be himself, but he plays the character for as long as necessary.
The character is imaginary.
It is always only the actor.
So then...
What is playing the character of "insert your name here"?
I love this one David. Beautiful so clear.