The _paratantra-lakṣana_, therefore, is a positivism, agnosticism, or empiricism in its spirit. Though the Yogâcâra Buddhists do not use all these modern philosophical terms, the interpretation here given is really what they intended to mean by the second form of knowledge. A world-conception based on this view, it is declared by the Mahâyânists, is sound as far as our perceptual knowledge is concerned; but it does not exhaust the entire field of human experience, for it does not take into account our spiritual life and our inmost consciousness. There is something in the human heart that refuses to be satisfied with merely systematising under the so-called laws of nature those multitudinous impressions which we receive from the outside world. There is a singular feeling, or sentiment, or yearning, whatever we may call it, in our inmost heart, which defies any plainer {91} description than a mere suggestion or an indirect statement. This somewhat mystic consciousness seems despite its obscureness to contain the meaning of our existence as well as that of the universe. The intellect may try to persuade us with all its subtle reasonings to subdue this disquieting feeling and to remain contented with the systematising of natural laws, so called. But it is deceiving itself by so doing; because the intellect is but a servant to the heart, and so far as it is not forced to self-contradiction, it must accommodate itself to the needs of the heart. That is to say, we must transcend the narrow limits of conditionality and see what indispensable postulates are underlying our life and experiences. The recognition of these indispensable postulates of life constitutes the Yogâcâra’s third form of knowledge called _pariniṣpanna-lakṣana_. _Absolute Knowledge._