"Equipped with qualities, a doer of works and creator of their consequences, he reaps the result of his actions; he is the ruler of the life and he moves in his journey according to his own acts: he has idea and ego and is to be known by the qualities of his intelligence and his quality of self. Smaller than the hundredth part of the tip of a hair, the soul of the living being is capable of infinity. Male is he not nor female nor neuter, but is joined to whatever body he takes as his own." (Swetaswatara Upanishad)
"From the non-being to true being, from the darkness to the Light, from death to Immortality." (Brihadaranyaka Upanishad)
"He becomes the Eternal and departs into the Eternal." (Brihadaranyaka Upanishad)
"He fashions one form of things in many ways." (Katha Upanishad)
"He passes in his departure from this world to the physical Self; he passes to the Self of life; he passes to the Self of mind; he passes to the Self of knowledge; he passes to the Self of bliss; he moves through these worlds at will." (Taittiriya Upanishad)
"He strives by these means and has the knowledge: in him this spirit enters into its supreme status. Satisfied in knowledge, having built up their spiritual being, the Wise, in union with the spiritual self, reach the Omnipresent everywhere and enter into the All." (Mundaka Upanishad)
"It is not large, and not minute; not short, not long; without blood, without fat; without shadow, without darkness; without wind, without ether; not adhesive, not tangible; without smell, without taste; without eyes, ears, voice, or mind; without heat, breath, or mouth; without personal or family name; unaging, undying, without fear, immortal, dustless, not un¬ covered or covered; with nothing before, nothing behind, nothing within. It consumes no one, and is consumed by no one. It is the imseen seer, the un¬ heard hearer, the unthought thinker, the unknown knower." (Brihadaranyaka Upanishad)
"Long and narrow is the ancient Path, - I have touched it, I have found it, the Path by which the wise, blowers of the Eternal, attaining to salvation, depart hence to the high world of Paradise." (Brihadaranyaka Upanishad)
"Made certain of the meaning of the highest spiritual knowledge, purified in their being." (Mundrake Upanishad)
"Seven are these worlds in which move the life-forces that are hidden within the secret heart as their dwelling-place seven by seven." (Mundaka Upanishad)
"The Infinite indeed is below, above, behind, before, right and left—it is indeed all this. Now follows the explanation of the Infinite as the I; I am below, I am above, I am behind, before, right and left - I am all this. Next follows the explanation of the Infinite as the Self: Self is below, above, behind, before, right and left - Self is all this. He who sees, perceives, and understands this, loves the Self, delights in the Self, revels in the Self, rejoices in the Self - he becomes a Svaraj, [an autocrat or self-ruler]; he is lord and master in all the worlds." (Upanishads)
"The one Godhead secret in all beings, all-pervading, the inner Self of all, presiding over all action, witness, conscious knower and absolute... the One in control over the many who are passive to Nature, fashions one seed in many ways." (Svetosvatara Upanishad)
"The Swan that settles in the purity... born of the Truth, - itself the Truth, the Vast." (Katha Upanishad)
"The transmigration of life takes place in one’s mind. Let one therefore keep the mind pure, for what a man thinks, so he becomes." (Upanishads)
"There is a birth and growth of the self. According to his action', the embodied being assumes forms successively in many places; many forms gross and subtle he assumes by force of his own qualities of nature..." (Swetaswatara Upanishad)
"There is a light that shines beyond all things on earth, beyond the highest, the very highest heavens. This is the light that shines in your heart." (Chandogya Upanishad)
"They say indeed that the conscious being is made of desire. But of whatsoever desire he comes to be, he comes to be of that will, and of whatever will he comes to be, he does that action, and whatever his action, to (the result of) that he reaches... Adhered to by his Karma he goes in his subtle body to wherever his mind cleaves, then, coming to the end of his Kama, even of whatsoever action he does here, he returns from that world to this world for Karma." (Brihadaranyaka Upanishad)
"This bodiless and immortal Life and Light is the Brahman." (Brihadaranyaka Upanishad)
"This is the eternal Tree with its root above and its branches downward; this is Brahman, the is the Immortal; in it are lodged all the worlds and none goes beyond it. This and That are one." (Katha Upanishad)
"This Self is to be won by the Truth and by an integral knowledge." (Mundaka Upanishad)
"This whole world is filled with beings who are His members." (Swetaswatara Upanishad)
"Thou art man and woman, boy and girl; old and worn thou walkest bent over a staff; thou art the blue bird and the green and the scarleteyed..." (Swetaswatara Upanishad)
"When a blade of grass is cut, the whole universe quivers." (Upanishads)
"When all the desires that cling to the heart Me loosed away from it, then the mortal becomes immortal, even here he possesses the Eternal." (Brihadaranyaka Upanishad)
