The last words of the final Teaching of the Temple in The Vampire Adept Bible read, "Without lies fact and fancy, truth and metaphor. Discriminate with care."
These words were not idly chosen to bracket the formal published Teachings of the world's only authentic Vampire Religion, HEKAL TIAMAT. They were chosen to emphasize a. number of critical principles that the Vampire needs to inculcate into the deepest recesses of his character.
Here lies bedrock. Here lies multiple, embedded meanings.
At the first level, these words act as a legal and public disclaimer. It is warning the reader to not just believe everything as written. It is clearly stating that not all they will read is true and factual. At least some of what is written is fanciful and metaphorical.