It's having a heart, Diluc Ragnvindr. All of this comes from sentiment, even killing people you barely know. The attachments to other people... [it weakens you and them, more if they're closer to you.] Their fears become your own, and it's impossible to stay objective.

Having a heart makes you care.

So send people to someone who doesn't care, or is capable of stopping in order to do what's needed.

[that's nehan, he means.]