SB 1.8 - Uttarā prays to the Lord
As soon as He seated Himself on the chariot to start for Dvārakā, He saw Uttarā hurrying toward Him in fear. Uttarā would later be the last person in the world to have seen Kṛṣṇa face to face. She would then help Vajranabha, Kṛṣṇa’s great-grandson, have deities of Kṛṣṇa carved to place throughout Vraja. The Lord protects everyone, but one who depends completely upon Him is especially looked after by the Lord. Uttarā prayed to the greatest of all mystics to protect her from the clutches of death. Other than Kṛṣṇa no one is devoid of fear. She said a fiery arrow was approaching her fast. She did not mind to die but she wanted her embryo saved. Uttarā did not follow her husband Abhimanyu when he died because she was pregnant and had the great devotee Parīkṣit in her womb.
The Lord could understand that Aśvatthāmā had thrown the brahmāstra as a revenge to Arjuna’s insult earlier, to finish the last descendant of the Pāṇḍavas. Although Aśvatthāmā had lost both his power and effulgence, neither his knowledge nor his memory nor his hatred for the Pāṇḍavas were affected. Ultimately, his shooting this brahmāstra, as well as the fact that he was later given the benediction to become one of the seven great sages in the next manvantara indicate that everything that took place was Kṛṣṇa’s pastime, which proceeds according to His desires, and participants in those pastimes are suitably empowered to play their respective roles.