sentences:  The Guhyasiddhi of Padmavajra, a work associated with the Guhyasamaja tradition, prescribes acting as a Shaiva guru and initiating members into Saiva Siddhanta scriptures and mandalas.The Samvara tantra texts adopted the pitha list from the Shaiva text "Tantrasadbhava", introducing a copying error where a deity was mistaken for a place.In the sixth and fifth centuries B.C.E., economic development made the merchant class increasingly important.