Upanishads on Rebirth

He who does not possess discrimination, whose mind is uncontrolled and always impure, he does not reach that goal, but falls again into Samsara (realm of birth and death).

Look back to those who lived before and look to those who live now. Like grain the mortal decays and like grain again springs up (is reborn).

He who performs this Nachiketa fire-sacrifice three times, being united with the three (mother, father and teacher), and who fulfills the three-fold duty (study of the Vedas, sacrifice and alms-giving) crosses over birth and death. Knowing this worshipful shining fire, born of Brahman, and realizing Him, he attains eternal peace.

As soon as a man acquires knowledge of the Supreme, he is liberated; but if he fails to attain such knowledge before his Soul is separated from the body, then he must take other bodies and return again and again to this realm of birth and death, until through varied experience he realizes the nature of the Supreme and his relation to Him.

This verse indicates the origin of the tree of creation (the Samsara-Vriksha), which is rooted above in Brahman, the Supreme, and sends its branches downward into the phenomenal world. Heat and cold, pleasure and pain, birth and death, and all the shifting conditions of the mortal realm--these are the branches; but the origin of the tree, the Brahman, is eternally pure, unchanging, free and deathless. From the highest angelic form to the minutest atom, all created things have their origin in Him. He is the foundation of the universe. There is nothing beyond Him.

If a man still clings to long life and earthly possessions, and is therefore unable to follow the path of Self-knowledge (Gnana-Nishta) as prescribed in the first Mantram (text), then he may follow the path of right action (Karma-Nishta). Karma here means actions performed without selfish motive, for the sake of the Lord alone. When a man performs actions clinging blindly to his lower desires, then his actions bind him to the plane of ignorance or the plane of birth and death; but when the same actions are performed with surrender to God, they purify and liberate him.

Nachiketas said: There is this doubt regarding what becomes of a man after death. Some say he exists, others that he does not exist. This knowledge I desire, being instructed by thee. Of the boons this is the third boon.

The Hereafter does not shine before those who are lacking in the power of discrimination and are easily carried away therefore by the charm of fleeting objects. As children are tempted by toys, so they are tempted by pleasure, power, name and fame. To them these seem the only realities. Being thus attached to perishable things, they come many times under the dominion of death. There is one part of us which must die; there is another part which never dies. When a man can identify himself with his undying nature, which is one with God, then he overcomes death.

This Self is never born, nor does It die. It did not spring from anything, nor did anything spring from It. This Ancient One is unborn, eternal, everlasting. It is not slain even though the body is slain.

Children (the ignorant) pursue external pleasures; (thus) they fall into the wide- spread snare of death. But the wise, knowing the nature of immortality, do not seek the permanent among fleeting things.

Those who are devoid of discrimination and fail to distinguish between real and unreal, the fleeting and the permanent, set their hearts on the changeable things of this world; hence they entangle themselves in the net of insatiable desire, which leads inevitably to disappointment and suffering. To such, death must seem a reality because they identify themselves with that which is born and which dies. But the wise, who see deeper into the nature of things, are no longer deluded by the charm of the phenomenal world and do not seek for permanent happiness among its passing enjoyments.

In the sight of true wisdom, there is no difference between the creator and the created. Even physical science has come to recognize that cause and effect are but two aspects of one manifestation of energy. He who fails to see this, being engrossed in the visible only, goes from death to death; because he clings to external forms which are perishable. Only the essence which dwells within is unchangeable and imperishable. This knowledge of the oneness of visible and invisible, however, cannot be acquired through sense-perception. It can only be attained by the purified mind.

The city of the Unborn, whose knowledge is unchanging, has eleven gates. Thinking on Him, man grieves no more; and being freed (from ignorance), he attains liberation. This verily is That.

This human body is called a city with eleven gates, where the eternal unborn Spirit dwells. These gates are the two eyes, two ears, two nostrils, the mouth, the navel, the two lower apertures, and the imperceptible opening at the top of the head. The Self or Atman holds the position of ruler in this city; and being above the modifications of birth, death and all human imperfections, It is not affected by the changes of the physical organism. As the intelligent man through constant thought and meditation realizes the splendour of this Supreme Spirit, he becomes free from that part of his nature which grieves and suffers, and thus he attains liberation.

Some Jivas (individual Souls) enter wombs to be embodied; others go into immovable forms, according to their deeds and knowledge.

This text shows the application of the law of cause and effect to all forms of life. The thoughts and actions of the present life determine the future birth and environment.

If a man is not able to know Him before the dissolution of the body, then he becomes embodied again in the created worlds.

A wise man never confounds the Atman, which is birthless and deathless, with that which has beginning and end. Therefore, when he sees his senses and his physical organism waxing and waning, he knows that his real Self within can never be affected by these outer changes, so he remains unmoved.

When all the ties of the heart are cut asunder here, then the mortal becomes immortal. Such is the teaching.