David didn't know what to think anymore. He had a crazy feeling that the thing with the dining room and those red eyes were somehow related to him. At first, when he saw that dream, he brushed it aside. And he didn't think about it that much. After all, the first time he saw something like that, he was heavily wounded and thought that it was probably a hallucination. He then didn't think about it that much and moved on.
But when he saw that same hallucination at the top of that hill, David knew that this could not be a coincidence. This thing, this illusion that he kept seeing, it is too real to be a coincidence. And if he is not wrong then this has something to do with Solaris.