Now with the rise of such dharmamegha the succession of the changes of the qualities is over, inasmuch as they have fulfilled their object by having achieved experience and emancipation, and their succession having ended, they cannot stay even for a moment. And now comes absolute freedom, when the guṇas return back to the pradhāna their primal cause, after performing their service for the purusha by providing his experience and his salvation, so that they lose all their hold on purusha and purusha remains as he is in himself, and never again has any connection with the buddhi. The purusha remains always in himself in absolute freedom. The order of the return of the guṇas for a kevalī purusha is described below in the words of Vācaspati: The guṇas as cause and effect involving ordinary experiences samādhi and nirodha, become submerged in the manas; the manas becomes submerged in the asmitā, the asmitā in the liṅga, and the liṅga in the aliṅga. This state of kaivalya must be distinguished from the state of mahāpralaya in which also the guṇas return back to prakṛti, for that state is again succeeded by later connections of prakṛti with purushas through the buddhis, but the state of kaivalya is an eternal state which is never again disturbed by any connection with prakṛti, for now the separation of prakṛti from purusha is eternal, whereas that in the mahāpralaya state was only temporary. We shall conclude this section by noting two kinds of eternity of purusha and of prakṛti, and by offering a criticism of the prajñā state. The former is said to be perfectly and unchangeably eternal (_kūṭastha nitya_), and the latter is only eternal in an evolutionary form. The permanent or eternal reality is that which remains unchanged amid its changing appearances; and from this point of view both purusha and prakṛti are eternal. It is indeed true, as we have seen just now, that the succession of changes of qualities with regard to buddhi, etc., comes to an end when kaivalya is attained, but this is with reference to purusha, for the changes of qualities in the guṇas themselves never come to an end. So the guṇas in themselves are eternal in their changing or evolutionary character, and are therefore said to possess evolutionary eternity (_pariṇāminityatā_). Our phenomenal conception cannot be free from change, and therefore it is that in our conception of the released purushas we affirm their existence, as for example when we say that the released purushas exist eternally. But it must be carefully noted that this is due to the limited character of our thoughts and expressions, not to the real nature of the released purushas, which remain for ever unqualified by any changes or modifications, pure and colourless as the very self of shining intelligence (see _Vyāsa-bhāshya_, IV. 33).