Plato believed that when the mind abandons the flesh and yearns for the truth, then the mind is the best, and when the soul is infected by the sins of the flesh, the desire for truth will not be satisfied. When human beings have no strong demand for flesh, the state of mind is peaceful, flesh is the expression of animality in human nature, is the nature of every organism, the reason why man is called a higher animal is because of human nature, human nature is stronger than animality, spiritual communication is beautiful, is moral.