Nine years later Siddhartha asked his charioteer to take him for a ride throughout the city. While riding he saw three things he had never seen before. One was an old man, another was a man suffering from illness, and finally he saw a dead body surrounded by mourners. The last sight he saw was a wandering old holy man with no possessions or a wandering ascetic. According to legend he left his family and wealth to find the cause of human misery.
In his teachings, the Buddha learned many elements of the Hinduism of this time, including the teachings of Samsara and Karma. However, Buddha differed from Hinduism in some important aspects. For example the Buddha opposed the animal sacrifices. Hinduism made much use of animal sacrifices to various gods, because this was the way that the Hindu's thought they would reach Nirvana. Angered, Buddha told his followers not to kill any living creatures for any reason. He also questioned the Hindu idea of the soul. He denied that there was any personal, eternal soul. Instead Buddha compared the soul and body to a cart. He said that it was composed