Different Commentaries
A. Shrimad Bhagavatam: -- We often hear that the different systems of religious currents in India have more or less derived their origin from the different interpretations of Vedanta. None is recognized as the leader of a school unless he can maintain his position as a commentator of Vedanta-Darshan which is known as the treatise on the Vedas as well as an authoritative refutation of all the different systems that might oppose the original source of religions of India. Two contending parties have decided the fate of Religious India, viz., the philosophers who have got a tendency to differ from the religionists by their rationalism, and secondly, the communities who have secular views different from those entertained by religionists. Early inculcations of religious views would show us a less civilized interpretation of usages in society; whereas when they were opposed by different scholastic views, they mended their course a little to meet the invaders and their exploitations.
A fake guru wants his followers to believe that he is God Himself—that's why he tries to impress them with his mystic powers. If the disciple of a phony guru were to express doubts about his guru's lordship, the guru would surely be angered. So how did Brahma react when Narada asked the questions, “Under whose protection are you standing? And under whom are you working? What is your real position?” And how did he react when Narada asked, “Yet we are moved to wonder about the existence of someone more powerful than you when we think of your great austerities in perfect discipline”? In response, Brahmaji was not angry. In fact, he was extremely pleased.
Science of Identity Foundation - Siddhaswarupananda
The Aphorisms were meant to give an undeviated decision of the apparently conflicting impressions of the hymns, but a frustration of the aim and object to gain some designed results transpired according to the whimsical temperament of the anti-Vedantists who had an inimical motive of attacking the undeviated devotional principles. An apprehension was detected by the writer of Aphorisms of such insinuations; so he undertook the task of furnishing a true interpretation that might check the exploiting stultifier from diverting the people from the Absolute Truth.
The Puranas are the supplementary elucidating religious instruction of the Veda. People, who are interested in having an interpretation of the Vedas in their own light, demand some supporting views to foster their cause; and so the supplementary writings were written to suit the different tastes of Raajasas, Taamasas and Saattvatas. The Saattvatas are truly ethical, whereas the other two are busy to maintain their respective notions. So the Aphorisms as explained by the commentators of these two schools, viz., the Taamasas and Raajasas seek to disturb the inner essence of the writer by their commentaries.