Dragon symbolism

Symbolism from Carl G. Jung's Mysterium Coniunctions: Dragon is personification of Sulphur and is by far the male element. Since the dragon is said to impregnate himself by swallowing his tail, then the tail is the male organ and the mouth is the female organ. The dragon consumes its entire body into his head; thus, partaking of his most dangerous and evil nature turning it into the inner fire of Mercury. This evil dragon nature which sulphur shares is frequently called the "dragon's head" (caput dragonis), which is a "most pernicious poison," a poisonous vapor breathed out by the flying dragon. However,the "winged dragon" that stands for quicksilver becomes a poison-breathing monster only after it unites with the "wingless dragon" which corresponds to sulphur. In psychological terms these two dragons represent the opposites; the winged dragon tries to prevent the wingless dragon from flying. They are always in confrontation until the wingless dragon flies, symbolizing the conquering of an obstacle, or obstacles, preventing total individualization. In other words, the winged dragon represents personal obstacles that must be overcome to insure a more-perfect being; thus, leading to the saying: "You conquer the dragon or he will conquer you."