User blog comment:IamJakuhoRaikoben/Chapter 251: The Right To Love, Review./@comment-1454981-20110918165937/@comment-3290324-20110918185804

Actually that hand is Lucy's right before her encounter with Kain. Cana has already cried. She cried when she was thinking about the betrayal of her comrades. In additon, look at her clothes from that page and compare them with the clothes she has on now. They are different so that's a past event. Natsu is the only part of the vision that hasn't come into fulfillment.