"Our life is projected by the basic bodily needs for sustenance such as food, and shelter is necessary to protect oneself from heat, cold, wind, rain and against dangers. These are the basic wants and vital necessities.
But apart from wants, there are cravings in the life of a man and they are different from needs. Desire for a particular type of food, sexual hunger and such other hankerings are cravings and not wants. Sexual hunger is described as a biological need, but it is not a thing without which man cannot live.