When he said it , Sanzo knew that that was right . Somehow , he was remembering something , something important , something vital . Hakkai blinked at him . " What do you mean ? "

Question: What will happen after Sanzo asks " What do you mean " ?
Answer: Hakkai would continue to blink his eyes and try to get something out of them .Hakkai would recall the event and tell him what he remembers .Hakkai would laugh at what Sanzo says to him .Hakkai will not understand how to explain the event to Sanzo .