A Nobody is both more and less complicated than anything else in all the worlds in the universe.
All a Nobody wants is to be a Somebody, to be a person, to be real. To have and to know and to feel and to be and, in the end, that's everything and so sometimes Roxas thinks that Nobodies must be the most selfish beings of all.
But they aren't Somebodies, or persons, or real and maybe they could be but not yet, not now. They're filled with something that would be longing if only they could feel, but they can't so it's something not-quite-there, a pale reflection of the real thing, and their memories are not their own. But Roxas doesn't even have that, he has no memories, and he supposes that really it's fortunate because he can't not-long for something he can't remember.
Except he does, sometimes, because the idea of it is something and something is better than nothing at all.
When Roxas looks at Axel he comes closer to feeling than a Nobody ever should, and when Axel looks back at him he thinks that maybe he can almost imagine what it would be like to not be empty and hollow with only the not-longing to cling to. He thinks that maybe he can imagine what it would be like to feel.
When Axel looks at him and smiles, he thinks he might know what it would be like to have a heart.
And that almost-knowledge would scare him if he knew how to fear because having a heart, much like being a Nobody, is both more and less complicated than anything else because, while hearts are strong, hearts can break and a broken heart is the hardest thing to mend and far beyond the borders of a Nobody's world.
But even though they cannot feel and are not persons and have no hearts, there is no denying that there is something between them and something, Roxas knows for sure, will always be better than nothing.
And when they touch, it's almost like being alive.