Ether and other qualities originate from the qualities of Goodness, Darkness, and Ignorance, and disappear in the end in them. Thus the qualities arise from Nature and disappear in Nature.
गुणा गुणेषु जायन्ते तत्रैव निविशन्ति च। एवं गुणा: प्रकृतितो जायन्ते निविशन्ति च।॥