Dreaming I'm back in the cockpit, but the instruments are wrong

Last night I'm flying a route I've flown a hundred times, but the instruments show a plane that isn't the one I'm in. The altimeter says 12,000, the ground says 600. I keep checking the dead reckoning — map, compass, watch — the only things that never lied. Then I wake up and realize I've been doing that for years in my head, navigating by the few facts I trust, ignoring every gauge that glows too green to be real.