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INTRODUCTION
55
If we analyse our thought, we shall find that it simply means, that as we cannot conceive any new existence to commence, therefore, all that now is seen to arise under a new appear. ance had previously an existence under a prior form. We are utterly unable to realise in thought the possibility of the complement of existence either increased or diminished. We are unable, on the one hand, to conceive nothing becoming something-or on the other something becoming nothing.... There is thus conceived an absolute tautology between the effect and its causes. We think the cause to contain all that is contained in the effect; the effect to contain nothing which was not contained in the cause" --Lectures on Metaphysics-XXXIX.
Having thus proved the existence of the effect in the cause, the Samkhyas employ this fact in proving the existence of their Prakrtı. Nature. The effect being only a developed cause, in which it has been lying latent, all entities must have their unmanifested condition in their cause. That is to say, the elements lie in Ahamkāra which lies in Buddhi. Now if we go on expanding this series we would be landed in a regressus ad infinitum. In order to avoid this we must postulate the existence of a principle which must be uncaused and which must be the final substratum of the undeveloped state of all other entities. Thus we have a causeless cause which must be by its very nature unmanifested, the final cause of all;--and to this the Sāmkhyas give the names “Pradhana." "Prakıtı"', " Avyakta." (Nature).
Secondly, we find that all entities--from Buddhi downwards-are limited and are the development of some further ultimate Principle—and this latter is Prakıtı.
Having thus proved the Existence of Nature the Samkhya proceeds to define its properties as well as those of its Products, and to explain wherein lies their difference