If you meet the buddha on the road, you must kill him.

The koan really strikes me in this situation. The character in the end accepts that he alone gets to make the final moral decisions for himself, regardless of what the labels are and what his teachings were. Many religious ceremonies are about abject submission, but many are also about the idea of "I freely give myself, and accept the consequnces of that submission" and so on.

Although I will add that I completely disagree with the hero. If he really was undecided, the current balance was his best bet. The dark lord's spell would have forced the balance into one that might not be corrected. Kill him, and the war continues, and he can learn which side is truly good by his definition. This seems especially true since the hero kind of accepted the idea of balance early on.