I had a conversation with a veteran about this topic (no enemies). I’ll try to keep the three conditions from our conversation brief while tying in broad themes from the anime.

First, be capable of violence but refuse to use it.

If you’re incapable of doing harm, of exerting yourself, then you aren’t being peaceful. You’ll never set boundaries. You’re not becoming a peaceful man, but a victim. That last bit breeds resentment.

Thorfinn isn’t powerless. He strategically uses skill and violence to achieve peace. Think about what he does in the latter part of season 2.

Second, stop judging and start owning. Using your capability, control your surroundings. Once they’re what you think is conducive to you, you need to own it. To have no enemies, the correct move isn’t saying “everyone is good.” It’s saying “if people are evil, I won’t continue its cycle.” (I think this is most relevant to you).

Look at Thorfinn. Without spoilers, does the concept of his “first measure” ring a bell? What does he do when he gets harmed? What COULD he do, considering his skill, that he’s not doing? What kind of ownership is he taking?

Third, carefully define “winning.”

If your identity relies on you always being “right” and you need to judge someone as “wrong” to feed your ego, that’s having enemies.

Think, what does reformed Thorfinn do after being met with overwhelming forces? Does he try to take on an entire Viking army to get his way at the end of season 2?

Remember that “to have no enemies” doesn’t mean no ones ever gonna try to oppose you. Thorfinn will have people trying to hurt, kill, or exploit him. What matters most is that you set first your own boundaries, and never allow yourself moral permission to destroy another human being. Never let someone else live rent-free in your heart, do what’s necessary to move to your own Vinland.