The Baital (or Vetala) is one of the most unique creatures in Hindu folklore, not a ghost in the Western sense, nor a zombie, but a spirit that occupies corpses to animate them. It inhabits cemeteries and crematories ('ghats'), hanging upside down from trees like a giant bat. It is a being of the liminal, a guardian between life and death, possessing absolute knowledge of the past, present, and future.
The most famous legend is that of the 'Baital Pachisi' (The 25 Tales of the Baital), where the legendary King Vikramaditya promises a sorcerer to capture a Baital and bring it to him in silence. Each time the king captures the possessed corpse and loads it onto his back, the Baital tells him a complex story with a moral dilemma at the end and demands an answer. If the king knows the answer and remains silent, his head will explode; if he answers, he breaks his vow of silence and the Baital escapes, flying back to its tree.
The Baital is cynical, wise, and cunning, not seeking to kill out of hunger, but to challenge human intellect and morality. It represents the necessary chaos that tests order ('dharma'). Although its appearance is cadaverous and terrifying (glowing eyes, decomposing body), it is a respected figure in Tantrism. It is believed that sorcerers seek to dominate the Vetales to turn them into slaves and gain prophetic powers. The Baital reminds us that death is not the end of consciousness, and that sometimes, the dead understand life better than the living.
