For episode #218 of Once Upon a Time, a guest role (preferably with an Asian accent) is being cast: The Healer. He’s 60, mystical, powerful, helpful to those in trouble, and makes predictions that can be difficult to understand.
Since there aren’t many Asians on this show, I'm 100% sure that this will be Mulan's backstory. It has to be.
Perhaps he will be a zen master who teaches Mulan martial arts. Perhaps he is the one who gave her her enchanted sword, whose blade was strong enough to cut through a magic beanstalk and refined enough to grind poppy seeds into a sleeping powder.
"That’s how you know you’ve really got a home. When you leave it, there’s this feeling that you can’t shake. You just miss it." Neal Cassidy