Once we begin to look into the minds of men we begin to see such a phenomenon that no wonder in the world can be compared with it: looking in the eyes when they are afraid, when they doubt, when they are sad and want to hide it, when they are glad; seeing how men from lions turn into rabbits, when they have a guilty conscience. As flowers emit fragrance so minds produce atmosphere. Apart from seeing it in the aura, even in the expression of man we can clearly see the record of his mind. Nothing can show man's mind better than his own expression. Mind therefore is the principal thing. We distinguish men as individualities, and it is the culture of the mind which develops individuality into personality.