The chapter opens with a description of the "heavy" things in the world. It's a reference to the fact that, as a human being, you have a lot of sensitivity to things around you, but you also have to keep that sensitivity in check so that you can focus on the things that matter most to you, like fighting demons and dealing with other human beings. In other words, you need to keep your field of vision as sharp as possible, even when you're dealing with demons and half-demons. The chapter ends with a soliloquy about how he's going to kill the Senators.