[Sora's quiet for a second as he tries to think of how to answer.]

How are you going to learn how not to lose control if you don't try?

[It's like the time Sora was stuck in antiform. He had lost control, but because of it he had learned how to control it in a round about way. And he thinks Roxas can do it too. Learn to control whatever it is that makes Roxas feel this way.]

You're stronger than you think you are, Roxas. You are.