Does anyone know this ancient egyptian myth?

Does anybody know about the ancient Egyptian myth of Kah or Kahn (I forget the exact spelling). It’s a myth I remember reading about that explains human life through the homunculus argument. It says that inside each one of us is a little man named “Kah” (I think) and he controls everything we do. You can see Kah by looking into someone’s eyes (which is really your own reflection). How do you explain Kah’s being alive? There is a second Kah inside the first… and a third inside the second, and a fourth, and a fifth, and a sixth, and a seventh. After seven it stops because the number seven was sacred and blasphemous to question.

I’m sure this myth exists. Does anyone recognize it?

I’ve never head it described in term of the infinite regression that you did, but the ka is the spirit aspect of ourselves that is normally represented as a person, and it goes on to be judged by Osirus. The presence or absence of ka is what seperates the living from the dead.

But what you described sounds more like the ba, which is normally represented as a winged bird, and is our ‘personality’, the aspect of ourselves that allows us to interact with others.