Soul is a fairly Emotionally Unstable, he is also burdened with Neuroticism, making him highly prone to lashing out on the other two, he split off from heart and Mind. who originally formed a whole, but none of them are compatible with each other, which caused the split in the first place. he is very irrational, he is very defensive and slightly judgemental. he is the one with the most power between heart, mind, and himself. Mind being in the middle, and Heart having the least.