SB 4.5.1

Lord Śiva understood that Satī, being the youngest daughter of Dakṣa, could present the case of Lord Śiva’s purity of purpose and would thus be able to mitigate the misunderstanding between Dakṣa and himself. But such a compromise was not attained, and Satī was deliberately insulted by her father by not being received properly when she visited his house without being invited. Satī herself could have killed her father, Dakṣa, because she is the personified material energy and has immense power to kill and create within this material universe. In the Brahma-saṁhitā her strength is described: she is capable of creating and dissolving many universes. But although she is so powerful, she acts under the direction of the Supreme Personality of Godhead, Kṛṣṇa, as His shadow. It would not have been difficult for Satī to punish her father, but she thought that since she was his daughter, it was not proper for her to kill him. Thus she decided to give up her own body, which she had obtained from his, and Dakṣa did not even check her.

When Satī passed away, giving up her body, the news was conveyed by Nārada to Lord Śiva. Nārada always carries the news of such events because he knows their import. When Lord Śiva heard that his chaste wife, Satī, was dead, he naturally became exceedingly angry. He also understood that Bhṛgu Muni had created the Ṛbhudeva demigods by uttering the mantras of the Yajur Veda and that these demigods had driven away all of his soldiers who were present in the arena of sacrifice. Therefore he wanted to reply to this insult, and thus he decided to kill Dakṣa because he was the cause of the death of Satī.