4. The old man, whose name is Melchizedek, tells the boy he is from Salem. (Note that there is a character in the
Bible named Melchizedek who was king of Jerusalem, also called Salem.) He tells Santiago that when people are
young, they all know their reasons for being, but they give up too soon. He has sensed that Santiago is on the verge
of trying to realize his Personal Legend. According to the old king, what is a Personal Legend?