She had thought she'd already reached her capacity for pain and had no room inside her for more. But she remembered having told Archer once that you could not measure love on a scale of degrees, and now she understood that it was the same with pain. Pain might escalate upwards, and, just when you'd thought you'd reached your limit, begin to spread sideways, and spill out, and touch other people, and mix with their pain. And grow larger, but somehow less oppressive. She had thought herself trapped in a place outside the ordinary feeling lives of other people; she had not noticed how many other people were trapped in that place with her.