PURPORT

When Diti heard from her husband that the great souls would be angered by the activities of her sons, she was very anxious. She thought that her sons might be killed by the wrath of the brahmanas. The Lord does not appear when the brahmanas become angry at someone because the wrath of a brahmana is sufficient in itself. He certainly appears, however, when His devotee simply becomes sorry. A devotee of the Lord never prays to the Lord to appear for the sake of the troubles the miscreants cause for him, and he never bothers Him by asking for protection. Rather, the Lord is anxious to give protection to the devotees. Diti knew well that the killing of her sons by the Lord would also be His mercy, and therefore she says that the wheel and arms of the Lord are magnanimous. If someone is killed by the wheel of the Lord and is thus fortunate enough to see the arms of the Lord, that is sufficient for his liberation. Such good fortune is not achieved even by the great sages.