Impossible? [Luke shakes his head, smiling at the woman. Clearly from the old order. That flicker of discomfort isn't lost on him, though.]

I'm afraid not. Anakin has two children. Me and my sister, Leia. It's a bit of a complicated story, but I suppose I'll start with the most basic facts. It may sound incredible, but truly, it isn't

[He starts to walk, clearly expecting her to follow.]

This is another world, a different reality. Much the same as slipping through into Hyperspace, only a different level of it, a dimension not our own. Do you follow so far?