A binding force

This cavernous space in my head, where the slightest noise echoes and multiplies, alongside the noises X makes; but at least I’m familiar with those. This huge dark non-space I have to negotiate to talk to people coherently, even to order a sandwich! It takes exceptional powers of concentration to live in the world, but I don’t have exceptional powers of concentration. A binding force is what’s needed. I often wonder where others find it, how they have it. I turn to X for help but he’s no help, of course, so I turn to you.