All dravyas have a specific composition of [[panchamahabhuta]] with an appropriate combination and separation (samyoga and vibhaga). There is a dominance of a particular [[mahabhuta]]. This defines them as akashiya ([[akasha]] dominant), vayavya ([[vayu]] dominant), agneya ([[agni]] dominant), apya ([[apa]] dominant) and parthiva ([[prithvi]] dominant).[Vai. Da. 1/5]<ref name=Va.D/>
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All dravyas have a specific composition of [[panchamahabhuta]] with an appropriate combination and separation (samyoga and vibhaga). There is a dominance of a particular [[mahabhuta]]. This defines them as akashiya ([[akasha]] dominant), vayavya ([[vayu]] dominant), agneya ([[agni]] dominant), apya ([[apa]] dominant) and parthiva ([[prithvi]] dominant).[Vaisheshik Darshan. 1/5]<ref name=Va.D/>