Grey noticed that the white halls had windows in them, or at least cut outs like windows. They were quite clear if anything was there blocking crossing over through the window. He approached the first one in the hall and saw a third person perspective of a  memory of a woman with which he had slept. He grinned a little thinking back to then and was relieved to think it was a real memory. He continued on and found several more hallways. All lined with windows. He stopped and looked at most of the windows if only for a moment. He quickly realized that these were his real memories. He was happy to be able to more easily distinguish between his real life and that crazy nightmare. 

He was finding though that navigating the hallways was getting rather frustrating. Every hall was lined with windows and halls lined with more windows and halls. Somethimes the halls just ended with a window. It was rather intresting seeing all of his memories, even some he had since forgotten, but he still needed to meet up with the others. He was getting more frustrated trying to navigate what was becoming more apparently a maze. Finally he reached the end of it. He felt like he had re-experienced his whole life trying to find it. The white door at the end of the hallway was a great relief. Memories were great, but Grey wasn't one to be held back by them. He stepped through the door to find yet another room, with doors on three of the sides and two archways on the last wall. He stepped through just as he saw the bigger girl begin through the tunnel marked 'The Truth'.