It is believed that Buddha's principal teaching on the Four Noble Truths cover all other Buddhist teachings. In these four truths, Buddha simply states the reality: suffering exists, and there is a cause and a cure for it. He says that one's suffering is related to the negative feelings, cravings, and even satisfying these cravings, as it is always only temporary. The cravings are described as the cravings to be, not to be, or cravings for pleasure. The negative thoughts are also thought to be the root of the suffering. There are three root negative emotions described in Buddhist teachings: ignorance, attachment and aversion. One must develop a real understanding of these roots of one's suffering in order to eliminate them and become free.
The fourth noble truth, or the truth of the path to the cessation of suffering, describes the Buddhist Noble Eightfold Path, which is believed to be the path to liberation. It teaches that the correct behavior, positive, controlled mind, constant awareness and the practice of meditation are the path to the cessation of suffering.