It means... [ He tilts his head. ] Well, it means basically what it sounds like. He's inside of me. That's how I can hear everything he says. And what he feels, I feel too, and vice versa.

[ That's the nice, palatable version for a wider audience, anyway. He's not going to get into oh yes, he crawled into my spine and fused with me that way without my permission because, well - that wouldn't help their point any further, would it? That would just scare people off more. Not this guy, obviously, but the rest of the nice, civilian crowd. ]

If you're curious about any more than that, you can always say hello after the panel's done. And that goes for everyone!