In the beginning, the Lord of Beings created men and women and laid down the rules of existence in terms of Dharma, or religious duty, Artha, or wealth, and Kama, or pleasure. The commandments on Dharma were compiled by Manu, on Artha by Brihaspati, and on Kama by Nandi, Shiva's follower. Humans have a life span of one hundred years and should practice Dharma, Artha, and Kama at different times in their lives in a way to harmonize these goals and not to create conflict among them. A man lives the life of a religious student until he finishes his education. At that time Dharma should be learned from scripture. Artha or wealth should be learned from the king's officers and from merchants. Kama is the enjoyment of the five senses, assisted by the mind and soul, and should be learned by the Kama Sutra, the practice of love enjoyed by citizens.