I couldn't help but notice the similarity of John's plight to a well known scene from Star Wars. The loss of a hand...hanging by one arm from a precipice...I fully expected a puddle jumper to show up under John so that he could jump on to it, and then return to Atlantis to be fitted with a mechanical hand.
While this was going on, I said, "Oh goodness, John is playing Luke." It makes sense, given that the story came from John's brain. Star Wars is an important narrative in our generation's consciousness, and making those connections while dreaming (or hallucinating, in John's case) doesn't seem out of place.
But, since this was *John's* worst nightmare, then does that mean that John relates Kolya to his father somehow?
Kolya: [heavy, mechanical breathing] John, I am your father.
This is a HUGE stretch, but I thought it was a fun one. Feel free to fry me on this, if you like. At least the similarities to Star Wars were slightly humorous.