I have to admit that I am a bit surprised by the fact that practically all of you have negatively connoted Mr. Renhe Ren's meditation, temporarily turning away from the anguish of life to "wait" for illumination from the wisdom of the ancestors.
But it is also for these surprises that I like to be, from time to time, the author of the first part of the story.
Your ending is divergent from the others, and in some ways more original, to the identity of the corpse, unrelated to the previous life of the protagonist and carrying with him a message that is almost a zen koan: an archer who swears not to to kill until a humanly impossible goal is achieved (to know all the consequences of his actions), plus he's a dead killer, which is an oxymoron in the oxymoron.
This fact amuses me a lot, and the fact that's the flywheel for the protagonist's return to inner peace your ending is fully in theme with the setting.