It’s as good as any definition of ‘I am’ out there: the subtle body identifying with reflected consciousness.
The identification of the subtle body with reflected consciousness (aka I am) is primordial, before sentient thinking, and thus intuitive in any contact.
In this refraction, the subtle body becomes the mind (with its memory and processing functions). Its primordial identification with reflected consciousness (I am) becomes ego (in essence, thought). And the reflection of consciousness itself becomes intelligence.
Another name for intelligence is the satguru. Listen.
The primordial ‘I am’ is translated into thought as the complex ‘I am this’. Follow the simple thought ‘I am’ into the primordial ‘I am’, intuitively.
Wait for the fog (maya) of reflected consciousness to lift. Prajnanam Brahma! I am That.