The one theme of the Vedanta philosophy is the search after unity. The Hindu mind does not care for the particular; it is always after the general, nay, the universal. "What is that, by knowing which everything else is to be known?" That is the one theme. "As through the knowledge of one lump of clay all that is of clay is known, so, what is that, by knowing which this whole universe itself will be known?" That is the one search. The whole of this universe, according to the Hindu philosophers, can be resolved into one material, which they call Âkâsha. Everything that we see around us, feel, touch, taste, is simply a differentiated manifestation of this Akasha. It is all-pervading, fine. All that we call solids, liquids, or gases, figures, forms, or bodies, the earth, sun, moon, and stars — everything is composed of this Akasha.