At first, I wondered if I WAS back at my starting spot or in another similar chamber with 50 doorknobs. Then, I looked down and noticed the wrappings from my sandwich that I had carelessly littered the floor with. So, I was definitely, back where I started as I believed at the time, no closer to home or my memories. As I first entered the chamber, I noticed the knob of the door I had just entered had changed. It was no longer reflected, but had become opaque crystalline in appearance. I decided that I had also left the sphere by that self-same door.