煉丹八卦爐

eight trigrams furnace to cook pills of immortality / symbol of the alchemist's art / Double, double toil and trouble, Fire burn, and cauldron bubble

to refine / to smelt

to concoct pills of immortality

red / pellet / powder / cinnabar

eight; 8

the eight divinatory trigrams of the Book of Changes 易經|易经[Yi4 jing1] / gossip / gossipy

divinatory diagram / one of the eight divinatory trigrams of the Book of Changes 易經|易经[Yi4 jing1] / one of the sixty-four divinatory hexagrams of the Book of Changes 易經|易经[Yi4 jing1]

stove / furnace