Nesta

So I love the DRK quests, I consider myself pretty decent at DRK lore but I often hear people talking about how there can be dark knights that use positive emotions to fuel their power, rather than the negative edgeyness we've come to know and love. I know a lot of the lore we have isn't exactly reliable, considering the source, but from my understanding the whole topic of love, or finding a cause to fight for is specifically to balance out the fact that you're using negative emotions. It's not the love itself that fuels them, but it's knowing that they can die knowing their are giving in to the badness inside knowing that they can go home at the end of the day and it was all worth it, balancing them out. If they don't have something to fight for then it's easier to just continue to fall into the darkness with no light to guide you. What do you think? Am I totally off with this reasoning, or can a DRK literally be so happy that their powers manifest?