One of the fifteen Hermetic Arts, Ignem is the form concerning fire, heat, and light. Fire is the most lifelike of the four elements: it moves, it devours, and it grows. Just like a living thing, it can be killed by the other three elements: smothered by earth, quenched by water, or blown apart by wind. Because fire is halfway between inert matter and living being, it shares the advantages of both.