The human soul has three souls and seven souls. There are three souls, one is the soul of heaven, the second is the soul of earth, and the third is the soul of life. There are seven souls, one soul is heaven, two souls are spiritual wisdom, three souls are qi, four souls are strength, five souls are the center, six souls are essence, and seven souls are heroes.
Among them, the seven souls are in charge of joy, anger, sorrow, fear, love, evil, and desire, and all are indispensable.