19. As long as these forms, remain permanent in the mind, it is called the waking state. So far have I told you about the cause of waking; now hear me expound to you the laws of sleep and dreaming. 20. When the body is weary with action of its limbs, mind or speech, the living element then becomes still, and remains in its composure, with the calm and quiet soul residing within the body. 21. The internal actions of the body and mind being quieted, and the motion of the heart being at rest, the living principle becomes as still, as the flame of a lamp unshaken by the wind. 22. The vital power ceases to exert itself in the members of the body, and to keep the consciousness awake. The senses of sight and others do not act upon their organs, nor receive the sensations from without. 23. Life lies latent in the inner heart, as the liquid oil resides in the sesamum seed; it lies as dormant in the interior part, as frigidity within the frost, and fluidity in the clarified butter. 24. The particle of intellect taking the form of life, after being purified from its earthly impurity; mixes with the internal soul, and attains the state of sound sleep, as if lulled to insensibility by the cooling breeze. 25. One feeling the impassibility of his mind, and dealing unconcernedly with every one, and reaching to the fourth stage of consciousness, beyond the three states of waking, dreaming and sleeping, is said to be _turíya_ or deadened in life. 26. When the vital principle comes again to action, after the enjoyment of its sound sleep, either in this or the other world (_i.e._ when it is restored to or reborn in life); it takes the name of the living element or the mind or self-consciousness (in the living body). 27. This principle of life and thought, sees the multitudinous worlds situated with all their vicissitudes within itself, as the large tree and all its parts and productions, are observed to be contained within the seed. (This is the picture of life in its dreaming state). 28. When the element of life is put to slight motion, by the breeze of the vital breath, it becomes conscious of its self-existence as “I am”; but the motion being accelerated, it finds itself to be flying in the air. 29. When it is immerged in the water (phlegm) of the body: it gets the feeling of humidity in itself, as a flower perceives its own fragrance. 30. When it is assailed by the internal bile, it has then the feeling of its inward heat, and sees all outward objects with its splenetic humour. 31. When it is full of blood, it perceives a fiery redness in itself, like that of a rubicund rock, or as the crimson red of the setting sun in the sky. 32. Whatever one desires to have, he sees the same in himself in his sleep; and this is by the force of his inward wind acting upon his mind, as upon his outward organs.