Mother, Father & Teacher

From Taittiriyopanishad

मातृदेवो भवः  (Matrudevo Bhava); Honor your mother. Look upon her as god.

पितृदेवो भवः  (Pitrudevo Bhava) ;  Honor your father. Look upon him as god.

आचार्यदेवो भवः (Acharyadevo Bhava); Honour your teacher as god. 

From The Mahabharata, Santi Parva, Section CVIII 

Yudhishthira said: The path of duty is long. It has also. O Bharata, many branches. What, however, according to thee, are those duties that most deserve to be practiced  What acts, according to thee, are the most important among all duties, by the practice of which I may earn the highest merit both here and hereafter?  

Bishma said: The worship of mother, father and preceptor (teacher) is most important according to me. The man who attends to that duty here, succeeds in acquiring great fame and many regions of felicity. Worshiped with respect by thee, whatever they will command thee, be it consistent with righteousness or inconsistent with it, should be done unhesitatingly, O Yudhishthira! One should never do what they forbid. Without doubt, that which they command should always be done. [Note: Literally, "One should not follow that course of duty which they do not indicate. That again is duty, which they command. This is settled."] 

They are the three worlds. They are the three modes of life. They are the three Vedas. They are the three sacred fires. The father is said to be the Garhapatya fire; the mother, the Dakshina fire; and the preceptor is that fire upon which libations are poured. These three fires are, of course, the most eminent. If you attend with heedfulness to these fires, you will succeed in conquering the three worlds. By serving the father with regularity, one may cross this world. By serving the mother in the same way, one may attain to regions of felicity in the next. By serving the preceptor with regularity one may obtain the region of Brahma. Behave properly towards these three, O Bharata, you will then obtain great fame in the three worlds, and you will be blessed, great will be your merit and reward. 

Never transgress them in any act. Never eat before they eat, nor eat anything that is better than what they eat. Never impute any fault to them. One should always serve them with humility. That is an act of high merit. By acting in that way, o best of kings, you may obtain fame, merit, honor  and regions of felicity hereafter. He who honors these three is honored in all the worlds. He, on the other hand, who disregards these three, fails to obtain any merit from any of his acts. Such a man, O scorcher of foes, acquires merit neither in this world nor in the next. He who always disregards these three seniors never obtains fame either here or hereafter. Such a man never earns any good in the next world. All that I have given away in honour of those three has become a hundredfold or a thousand-fold of its actual measure. It is in consequence of that merit that even now, O Yudhishthira, the three worlds are clearly before my eyes. 

One Acharya (teacher) is superior to ten Brahmanas learned in the Vedas. One Upadhyaya is again superior to ten Acharyas. The father, again, to ten Upadhyayas. The mother, again, is superior to ten fathers, or perhaps, the whole world, in importance. There is no one that deserves such reverence as the mother. In my opinion, however, the preceptor is worthy of greater reverence than the father or even the mother. The father and the mother are authors of one’s being. The father and the mother, O Bharata, only create the body. The life, on the other hand, that one obtains from one’s preceptor, is heavenly. That life is subject to no decay and is immortal. The father and the mother, however much they may offend, should never be slain. By not punishing a father and a mother, (even if they deserve punishment), one does not incur sin. Indeed, such reverend persons, by enjoying impunity, do not stain the king. The gods and the Rishis do not withhold their favours from such persons as strive to cherish even their sinful fathers with reverence. 

He who favors a person by imparting to him true instruction, by communicating the Vedas, and giving knowledge which is immortal, should be regarded as both a father and a mother. The disciple, in grateful recognition of what the instructor has done, should never do anything that would injure the latter. They that do not reverence their preceptors after receiving instruction from them by obeying them dutifully in thought and deed, incur the sin of killing a foetus. There is no sinner in this world like them. Preceptors always show great affection for their disciples. The latter should, therefore, show their preceptors commensurate reverence. He, therefore, that wishes to earn that high merit which has existed from ancient days, should worship and adore his preceptors and cheerfully share with them every object of enjoyment. With him who pleases his father is pleased Prajapati himself. He who pleases his mother gratifies the earth herself. He who pleases his preceptor gratifies Brahma by his act. 

For this reason, the preceptor is worthy of greater reverence than either the father or the mother. If preceptors are worshiped  the very Rishis, and the gods, together with the Pitris, are all pleased. Therefore, the preceptor is worthy of the highest reverence. The preceptor should never be disregarded in any manner by the disciple. Neither the mother nor the father deserves such regard as the preceptor. The father, the mother, and the preceptor, should never be insulted. No act of theirs should be found fault with. The gods and the great Rishis are pleased with him that behaves with reverence towards his preceptors. They that injure in thought and deed their preceptors, or fathers, or mothers, incur the sin of killing a foetus. There is no sinner in the world equal to them. That son of the sire’s loins and the mother’s womb, who, being brought up by them and when he comes to age, does not support them in his turn, incurs the sin of killing a foetus. There is no sinner in the world like unto him. We have never heard that these four, viz., he who injures a friend, he who is ungrateful, he who slays a woman, and he who slays a preceptor, ever succeed in cleansing themselves. I have now told thee generally all that a person should do in this world. Besides those duties that I have indicated, there is nothing productive of greater felicity. Thinking of all duties, I have told thee their essence.