In plain words
So that quality of the ṛṣi too dwells in our mother herself. Just as the guru teaches the branches of learning, tells us what is a good deed and what a wrong one, and imparts to man these worldly lessons, what is the good, what is Prajñāna, what is Vijñāna, for living his life day by day, in just the same way the mother keeps teaching her child the lessons of how to behave at home and outside, how to greet elders, how to converse with them, how to honour elders. So true guruhood is the very form of our mother.
The life of a man who cannot honour, who cannot worship such a mother, can only be called meaningless. So it is the duty of every man that we honour and love the mother, the embodiment of all power. To spread these sacred, divine sayings across the world, it has gone on setting many kinds of ideals before the world, by way of these Devī Navarātri. It has gone on being revealed within three names: Durgā, Lakṣmī, Sarasvatī. Durgā means the embodiment of power. What kind of power: physical, mental and spiritual power. The embodiment of power who grants these three powers, they called Durgā. This very thing they called energy. Then Lakṣmī. She is the one who Herself grants all the wealth we can enjoy in the world, of many kinds: the wealth of wisdom, the wealth of virtue. Wealth does not mean currency notes alone. The wealth of wisdom. Our health too is wealth. The wealth of virtue. The embodiment of every kind of wealth: that is Lakṣmī. This Lakṣmī: the embodiment of riches, the embodiment of wealth. Then Sarasvatī. She is the one who grants us the intelligence we have, the power of inquiry and the power of the Buddhi. It is to proclaim and impart the might of these, Durgā, Lakṣmī and Sarasvatī, to the world that these Śarannavarātri came to begin. The embodiment of all three is our own mother. She herself pours out on her children every strength they need. For the child's advancement she loves him, wishing that he become wealthy, healthy and joyful and win fame in the world, and keeps devising many plans for his progress. The mother keeps hoping that her son will become highly learned and intelligent and win great fame in the world. The mother is she who has taken on such a threefold form.
That the Pāṇḍavas could make their lives blessed in the service of Kṛṣṇa and under the command of Kṛṣṇa, the Pāṇḍavas' strength and abilities alone were not the reason. Their powers of tapas were not the reason. Kuntī Devī's Prema itself was the reason they reached the presence of Śrī Kṛṣṇa. Kuntī held her children as dear as life, and while they lived in the forest she went on offering many kinds of prayers for them.