Well I ask because what can be seen as physical representation of anything can also be seen as spiritual. What is spiritual is physical. There are many tools out there that do not seem appealing, but alot of them were originally intended to help guide our minds to a greater understadning, to become a seed,
food for thought. Also you should note, Native Americans first came with the idea of cannibilism, creating images of werewolves and vampires of its like-
http://en.wikipedia.org/wiki/WendigoAnd in old old legends of my people these cannibilists 'windigos' were not flesh eating in a mere factual sense WHATSOEVER....they ate the ideas of flesh. They consumed ignorance of the worlds physical views and transformed them. The more they ate, the more they consumed, the more they could. It becomes an addiciton, to know the truth. These windigo cons still live today in our ceremonies, they know alot of these things. The idea of vampires came from them, vampires are flesh eating, of a different kind....it is a physical raw representation of a spiritual act of balance, again
food for thought type a symbolism that people are very unaware of. Taking physical ideas for spiritual fuel. so on and so on, this knowledge is rare. However I am sure you know absolutely nothing of the windigo people who first brought ideas of cannibilism here, and that is why I asked the question I did.