When Kṛṣṇa and Balarāma heard from Their teacher about the death of his son, They immediately started for Prabhāsa-kṣetra on Their chariot. Reaching the beach, They asked the controlling deity of the ocean to return the son of Their teacher. The ocean deity immediately appeared before the Lord and offered Him all respectful obeisances with great humility.
The Lord said, “Some time back you caused the drowning of the son of Our teacher. I order you to return him.”
The ocean deity replied, “The boy was not actually taken by me but was captured by a demon named Pañcajana. This great demon generally remains deep in the water in the shape of a conchshell. The son of Your teacher might be within the belly of the demon, having been devoured by him.”
On hearing this, Kṛṣṇa dove deep into the water and caught hold of the demon Pañcajana. He killed him on the spot but could not find the son of His teacher within his belly. Therefore He took the demon’s dead body (in the shape of a conchshell) and returned to His chariot on the beach of Prabhāsa-kṣetra.
From there He started for Saṁyamanī, the residence of Yamarāja, the superintendent of death. Accompanied by His elder brother, Balarāma, who is also known as Halāyudha, Kṛṣṇa arrived there and blew on His conchshell. Hearing the vibration, Yamarāja appeared and received Śrī Kṛṣṇa with all respectful obeisances. Yamarāja could understand who Kṛṣṇa and Balarāma were, and therefore he immediately offered his humble service to the Lord. Kṛṣṇa had appeared on the surface of the earth like an ordinary human being, but actually Kṛṣṇa and Balarāma are the Supersoul living within the heart of every living entity. They are Viṣṇu Himself but were playing just like ordinary human boys. When Yamarāja offered his services to the Lord, Śrī Kṛṣṇa asked him to return His teacher’s son, who had come to him as a result of his work. “Considering My ruling supreme,” said Kṛṣṇa, “you should immediately return the son of My teacher.”
Yamarāja returned the boy to the Supreme Personality of Godhead, and Kṛṣṇa and Balarāma brought him to his father. The brothers asked if Their teacher had anything more to ask from Them, but he replied, “My dear sons, You have done enough for me. I am now completely satisfied. What further want can there be for a man who has disciples like You? My dear boys, You may now go home. These glorious acts of Yours will always be renowned all over the world. You are above all blessing, yet it is my duty to bless You. I therefore give You the benediction that whatever You speak will remain as eternally fresh as the instructions of the Vedas. Your teachings will be honored not only within this universe or in this millennium but in all places and ages and will remain increasingly new and important.” Due to this benediction from His teacher, Lord Kṛṣṇa’s Bhagavad-gītā is ever increasingly fresh and is renowned not only within this universe but in other planets and other universes also.
Being ordered by Their teacher, Kṛṣṇa and Balarāma immediately returned home on Their chariot. They traveled at great speed, like the wind, and made sounds like the crashing of clouds. All the residents of Mathurā, who had not seen Kṛṣṇa and Balarāma for a long time, were very much pleased to see Them again. They felt joyful, like a person who has regained his lost property.