Mind is an emotionless, logic driven being, he split off from heart and soul. who originally formed a whole, but none of them are compatible with each other, which caused the split in the first place. Although mind seems fully emotionless. he does secretly have some feelings, it's mostly anger, but catch him alone on a really rough day and he may be showing sadness.. Mind is the second most powerful between Soul, Heart, and himself. soul having the most, heart having the least 