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Svayambhūstotra
is the internal or substantial cause (upādāna kartā). The task necessarily means the destruction of clay in its original form but the inherent qualities of clay still remain in the pitcher. There is the origination (utpāda) of the new form of clay, the disappearance (vyaya) of its old form, and still the existence (being or sat) of the substance itself continues (dhrauvya). In other words, existence is accompanied by origination (utpāda), disappearance (vyaya), and permanence (dhrauvya). As there is no destruction of the inherent nature of clay, it is lasting. Permanence is the existence of the past nature in the present. From a particular point of view, the indestructibility of the essential nature of the substance is determined as its permanence. Qualities reside permanently in the substance but the modes change. Modes like the pitcher are not permanently associated with clay but the qualities reside permanently. So, utpada, vyaya and dhrauvya cannot be said to be non-existent like ‘a flower in the sky'.
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