Board Thread:Skyrim/@comment-121.223.76.223-20140101064528/@comment-25313753-20141123005027

There is nothing to do in that scene but watch and learn the Dragonrend shout. You will actually fight Alduin later. Actually, very soon after you learn the shout, and exit the 'Time Wound'. You will have to use the Dragonrend shout then, to even be able to affect Alduin at all.