13. Know Ráma, this certain truth which is acknowledged by the wise, that the living principles acquire its desired state and stature, be it that of a mountain or bit of straw. (This passage supports the free agency of man to go in either way in opposition to the doctrine of blind fatalism, and the arbitrary power of the Divine will). 14. You have heard, O Ráma! of certain powers as of diminishing and increasing the bulk and stature of the body, attainable by the practice of yoga; you will now hear me give you an interesting lecture, regarding the attainment of these capacities by means of knowledge or _jnána_. (This is the theory or theoretical part of the practice or practical art of yoga). 15. Know for certain that there is but only one intelligent principle of the Intellect, which is inscrutable, pure and most charming; which is minuter than the minutest, perfectly tranquil and is nothing of the mundane world or any of its actions or properties. 16. The same chit--intellect being collected in itself into an individuality (by its power of _chayana_ integration) from the undivided whole, and assuming the power of will or volition--_sankalpa_ itself, becomes the living soul by transformation of its pure nature to an impure one. (This power of integration is said to be a fallacy _adhyása_ or misconception--adhyáropa of human mind, which attributes a certain quality to a thing by mistake or _áropa_ as [Sanskrit: paratra parábabhásah]: or mistaking a thing for another _e. g._ [Sanskrit: shuktau ratrátávadábhásah]: _i.e._ taking the shell for silver from its outward appearance.) 17. The will is a fallacy, and the body is a mistake; (because there is no mutation of volition or personality of the infinite intellect); and the ignorant alone distinguish the living soul from the universal spirit, as the ignorant boy sees the demon in a shadow. (All these are false attributes of the true one). 18. When the lamp of knowledge brings the mind to the full light of truth, then the error of volition is removed from the living soul, as the cloud of the rainy weather are dissipated in Autumn. 19. The body has its rest, after the wishes have subsided in the mind; just as the lamp is extinguished after its oil is exhausted. (Mental anxieties cause the restlessness of the body). 20. The soul that sees the truth, has no more the knowledge of his body; as the man awakened from his sleep, has no longer the apparitions of his dream appearing before him. 21. It is the mistaking of the unreal for the real or what is the same, the ascribing of reality to the unreality that gives the colour of reality to false material bodies; but the knowledge of the truth removes the error of the corporal body, and restore the soul to its wonted splendour and true felicity.