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Khernips is the practical ritual tool that addresses miasma in everyday practice. Traditionally made by dipping a burning torch or hot coal from the altar fire into water - the hiss of the flame meeting water was itself considered part of the purification - the resulting water was used to wash the hands (and sometimes sprinkle over the body or the sacrificial victim) before approaching the gods.
In ancient practice, khernips bowls were commonly placed at temple entrances, so that anyone entering could purify themselves of ordinary, low-level miasma (the residue of daily life) before crossing into sacred space. It was also used at the start of sacrifice and libation, marking the transition from ordinary time into ritual time.
For modern practitioners, khernips is usually recreated simply: water with a pinch of salt, or water passed briefly over a lit candle flame or match, used to wash the hands before a devotional act — a small, accessible act of threshold-marking rather than a literal recreation of temple fire ritual.