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The scene is basically Roxas' first appearance into the world. The scene takes place simutaneously with the scene in which Sora became a Heartless. Meaning it was the scene sometime shortly after Roxas' creation. At this point Roxas was getting used to his existence, he had no emotions whatsoever, considering his lack of a heart. Xemnas states that he looks alot like him [Sora]. He then gives Roxas his name, using Sora and the letter X. It's explained in 358/2 days.  Timelinesplitter Chaos 15:21, December 5, 2012 (UTC)

But they seem to know eachother. Plus Xemnas says that Roxas has been with the organization for 6 days.AkaAxl 15:29, December 5, 2012 (UTC)

Oh yeah, it's been a little while since playing it..Hm, which scene exactly, are you talking about the scene that shows at the beginning of Kingdom Hearts II as well?  Timelinesplitter Chaos 15:32, December 5, 2012 (UTC)

Yes. That one.AkaAxl 15:51, December 5, 2012 (UTC)

I believe that's simply the moment that Roxas is given his name by Xemnas. Or they're just talking.  Timelinesplitter Chaos 17:21, December 5, 2012 (UTC)

I figured it out. When Xemnas says "I've been to see him." It was referring to Xemnas fighting Sora at Hollow Bastion. Xemnas then states that Sora looks alot like him [Roxas]. And so on.  Timelinesplitter Chaos 22:54, December 10, 2012 (UTC)