The lightning over south India became more concentrated until finally it was flashing all around the plane. Our aircraft bumped and juddered it's way through, then plummeted several metres so suddenly that my stomach rushed up through my body. By the time we came in to land, the storm was all around us - shaking the aircraft and surrounding it with cloud so thick that I couldn't see the wing out of my window. With sweaty palms, we finally bounced down onto Katuniyake runway in the wet, 4am darkness. I was back in Sri Lanka. And glad to be on the ground.