This is known as Dravyarthik-naya. This is known as Paryayarthik-naya. The modification that an entity undergoes either naturally or artificially is nothing but the transformation of its various shapes, sizes, and forms. These changes are the natural modifications. Childhood, youth, and old age are transient forms known as Paryaya Soul of a living being is permanent and known as Dravya Clay is molded by a potter into a pot.
Gold is crafted by a goldsmith into various ornaments.
These changes are artificial modifications of the nonliving substances. While undergoing various modifications, either natural or artificial, the basic dravya of a substance remains unchanged and is permanent, while its form changes and is transient. As explained above Jainism believes that the universe is made from the combination of the six universal substances. All of the six substances are indestructible, imperishable, immortal, eternal and continuously go through countless changes. This is the only knowing substance.