Divination with fire or flames: A good omen resulted by pyromancy when the flames were vigorous and quickly consumed the sacrifice and when the smoke was transparent, neither red nor dark in color.

On the other hand, when the fire didn’t crackle, but burnt silently in a pyramidal form, a bad omen was predicted, even when it was difficult to kindle, disturbed by wind or slow to consume the victim.

Mantics also observed flames of torches by throwing powdered pitch into the flames. Another aspect is pyroscopy (based on the burn stains left on a light surface after burning a sheet of paper).