I'm curious to know Odium is able to sense Moash's thoughts and take away his pain, basically influencing him. I thought shards are only able to hear thoughts and influence their subjects only by hemalurgy, something we saw in the mistborn books. Also, Odium is wounded from the battles with Ambition, Honor, Dominion, and Devotion, and he's confined to Braize, so I'm not sure how he affects and influences his followers so strongly. It seems unlikely that Odium is aware of Hemalurgy, so is it just about being willing to give in to his rule, such as what he tried to do with Dalinar, or singers with voidspren in their gemhearts?