[ He knows the feeling that Midna describes; it's one that's burdened him in the past. It's one that dogs at his heels now. The guilt he feels for the people he's failed in his life... it sometimes threatens to be overwhelming, although lately he's been working on that. On being able to push through it, to understand that he can't save everyone - even if he wants to. ]

It is heavy. Heavier than anything else in the world.

[ His voice is soft. A part of him suspects that this princess is... at least partially a metaphor or a way for Midna to circle towards the point. ]

When your decisions mean life or death for people, it's hard not to feel guilty. When your people cannot eat or are without shelter... what else can you feel but sorrow? Especially if you can sit inside in warmth and fill your belly.