8. As also by the precepts of the Sástras, by the rules of humanity, prudence and spiritual knowledge; and also by the continued practice of the acts of religious merit. 9. Let the wise continue their inquiries until they can obtain their internal peace, and until they may arrive at the fourth stage (turya) of felicity known by the name of indestructible tranquility. 10. Whoso has gained this fourth state of tranquil felicity, he has really passed beyond the limits of the ocean of the world, whether he is alive or not, or a house-holder or an ascetic. 11. Such a man remains steady at his place like the calm sea undisturbed by the Mandara mountain, whether he has performed his duties according to the Srutis and Smritis or not. 12. When there is a partial agreement of the comparison with the nature of the compared object, it is to be considered maturely for the well understanding of the point in question, and not to be made a matter of controversy. 13. From every form of argument you are to understand the intelligible (that is explained to you); but the confounded disputant is blind both to right and false reasoning. 14. The notion of self (soul or God) being clear (self-evident) in the sphere of our consciousness within the mind. Any one who prattles meaninglessly about this truth, is said to be defective in his understanding (_i.e._ our consciousness of self-existence according to the maxim “_Ego sum qui cogito_,” is an undeniable truth). 15. It is partly by pride and partly by their doubts, that the ignorant are led to altercate about their cognitions, and thereby they obscure the region of their inward understanding, as the clouds overshadow the clear firmament. 16. Of all sorts of proofs it is the evidence of perception which forms their fountain-head, as the sea is the mainspring of all its waters. It is this alone which is used in this place as you shall learn below. 17. The substance of all sensations is said to be the supersensible apprehension (or inward knowledge of things) by the wise; and it is verily their right concept which is meant by their perception. 18. Thus the notion, knowledge and certainty (of things) as derived from words, are styled the triplicate perception as we have of the living soul. 19. This soul is consciousness and egoism, and is of the masculine termination, and the cognition of the object whereby it is manifested to us, is called a category. (Viz. _samvid_, _samvitti_ and _padártha_). 20. It becomes manifest in the form of the passing world by the multifarious acts and shifts of its volition and option, as the water exhibits itself in the shape of its waves and bubbles. 21. It was uncausal before, and then developed itself as the cause of all in its act of creating at the beginning of creation, and became perceptible by itself.