the meaning of vampires in dreams

"Like vampires, the anima and the mountain spirit love the blood of their victims. The vampire motif is worldwide. Vampires are the spirits of the dead in Hades to whom Odysseus must first sacrifice blood. Their lust for blood is the craving or impulse of the unconscious contents to break into consciousness. If they are denied they begin to drain energy from consciousness, leaving the individual fatigued and listless. This story indicates an attempt on the part of unconscious contents to attract the attention of consciousness, to obtain recognition of their reality and their needs and to impart something to consciousness." Marie-Louise von Franz, The Interpretation of Fairy Tales