Souls don't Mix

"Friends?" Cali asked. "Why would that make a difference? You think souls have friends? When we crossed the sea of the dead to get to Hel's Palace, did you see any friends? You did not. Every soul there was as friendless in death as we are in life. Friend, as you call it, is a concept constructed by the human mind to tame the soul of another and bind them to our cause. It is a weakness that all men, women, elves, dwarves, giants, all share and exploit alike. I told you, the soul is corrosive."