Sometimes he tried to calculate the number of porcelain bricks in the walls of the cell. It should have been easy, but he always lost count at some point or another. More often he wondered where he was, and what time of day it was. At one moment he felt certain that it was broad daylight outside, and at the next equally certain that it was pitch darkness. In this place, he knew instinctively, the lights would never be turned out. It was the place with no darkness: he saw now why O’Brien had seemed to recognise the allusion. In the Ministry of Love there were no windows. His cell might be at the heart of the building or against its outer wall; it might be ten floors below ground, or thirty above it. He moved himself mentally from place to place, and tried to determine by the feeling of his body whether he was perched high in the air or buried deep underground.