What is the aim of Buddhism, one of the world great religions? What does Buddhism teach?

Generally, all religions want people to live a good and happy life. According to Buddhism, life is suffering and therefore Buddhism attempts to end suffering by attacking its causes. Since the causes of suffering are, greed, hatred, illusion, for example, Buddhism urges its followers to overcome these feelings. It teaches people to sow love where there is hatred, generosity where there is greed, wisdom where there illusion. On a higher level, Buddhism encourages people to realize that the world is illusion. That is, it is not real, and nothing in it is lasting. Buddhism warns us not to groap or cling to anything as being a self or belonging to a self, because clinging causes suffering. Nothing truly belongs to us, not even our bodies or our lives for we cannot control either. We cannot escape from sickness, age, or death, All three make people suffer. The more we try own anything or cling to it the more we suffer. Buddhist want others to realize this truth of life so they too may escape suffering.