✈️ perfect balance between

water evaporates fire humidity metals capable enduring great heat 

 evaporation be water

generation metals two kinds moisture

one viscous external totally joining earthy parts substance

 same inflammable sulphureous viscous internal humidity 

identical composition earthy portions neither combustible nor inflammable 

smallest parts intimately joining together make one inseparable quicksilver 

dry moist particles closely uniting be severing heat fire 

there perfect balance between

perfection philosophical quicksilver purification agent (sulphur)

 creating corrupting erupting influences meaning spark

 two together perform what each itself unable accomplish

each separated from other hindered doing work certain deadly impurities

Art imitating method Nature bringing about purification

both generation Philosophical Stone perfecting metals 

exact way purification accomplished 

 principle same Nature change common metals gold

all efforts alchemist's Art be vein