Since there is nothing other than Brahman, it is the supreme advaita (non duality). The pot which is made of clay, has no other form than that of the clay. No one can show the pot except by means of the clay. The pot is only a delusion of the imagination and exists only in name, since it has no other reality than that of the clay. Similarly the whole universe is a superimposition (of form) on the Brahman although it appears to be separate from it. - Vivekacudamani