Xigbar: “Oh? Thanks to your heart, everything's gone according to our plan. The heart's a troublesome thing, isn't it?”
Sora: “Don't you guys have hearts too? Axel, Roxas, Namine, and that girl—in the emotions Roxas felt, everyone laughed, became angry, and became sad. The tears they shed are proof of that.”
Xigbar: “You finally realized it.”
Xemnas: “Correct. It is not as though our hearts had disappeared.” [Insert a bunch of technobabble about Heartless and Nobodies and how this works I don't feel like translating]
Sora: “Then... then why did you trick them into thinking they had no hearts!?”
Xigbar rambles about Xemnas/Xehanort's true plans for the Organization, which basically involves using them as tools for Kingdom Hearts, and... making all of the members into Xehanort? Sora is appalled that they would trick their comrades for such a thing, and calls Xigbar out on that meaning Xigbar as Xigbar will disappear, too, and it zooms in on Xigbar's gold eye, and he states that he's already half-Xehanort.
“That’s right; we did not remain heartless. There are differences, but [something inside us was trying to give birth to a heart? Can’t understand the whole sentence.] A heart is something that buds and is nurtured. The experiments to create heartless involved controlling the spirit and making people abandon themselves. But even if someone is made to lose their heart in that way, there will always be a heart within the vessel that is their body. We too were divided into heart and body, Heartless and Nobody, but I knew that we had come to possess hearts once again.”
Braig says that Sora’s power comes from a connection to someone else’s heart, and he himself is not keyblade wielder material. But not to worry, the Organization will still use him as a vessel! Sora's all like, "I don't care if I'm not a real keyblade wielder! My power comes from my friends!"
¿Entonces dice que si Ven despertara Sora perdería sus poderes?
Aunque también puede haber fallos de traducción así que no os fiéis mucho.