https://buddhism-for-vampires.com/

There is extensive vampire lore within traditional Buddhism. I have summarized this in “The Tibetan Book of the Undead.” Apart from its intrinsic interest, this history makes it clear that one cannot dismiss “Buddhism for vampires” as inherently bogus. According to mainstream tradition, vampires have practiced Buddhism, and some have even attained Buddhahood. No one can say this is an illegitimate topic, or some kind of Western commercial distortion. One could combine Buddhism and vampires in a cheap gimmick—but I believe it is possible to explain Buddhism accurately in the language of the undead. In fact, I believe some aspects of Buddhism are best explained that way.