A man, hulucinating with hunger, stepped in an old canyon before falling in to what looked like a never ending mine-shaft with sharp planks sticking out everywhere!
In another dimentoin, this man was running along one of the planks before tripping, then the plank gave way and disappeared just before the falling man came rushing down. Suddenly he understood what was happening. The tunnel crashes two dimentoins together to create a new one. So himself was helping him!
Once he had reached the bottom of the canyon, the other versoin of himself was holding a blanket which the other could land. The first thing that came out of that mans mouth was, I don't know how many, but it was a lot of thanks!