This is true even of merely theoretical knowledge, for all knowledge carries its benefit in itself, contrary to action, which is only a momentary modification of a being and is always separated from its various effects. These effects belong to the same domain and order of existence as that which has produced them. Action cannot have the effect of liberating from action, and its consequences cannot reach beyond the limits of individuality considered in its fullest possible extension. Action, whatever it may be, is not opposed to, and cannot banish, ignorance, which is the root of all limitation; only knowledge can dispel ignorance as the light of the sun disperses darkness, and it is thus that the "self," the immutable and eternal principle of all manifest and unmanifest states, appears in its supreme reality. [MetaOrient]