While the demon was trying to smash Kṛṣṇa and His companions, Kṛṣṇa heard the demigods crying “Alas! Alas!” and He immediately began to expand Himself within the throat of the demon. Although he had a gigantic body, the demon choked by the expanding of Kṛṣṇa. His big eyes moved violently, and he quickly suffocated. His life air could not come out from any source, and ultimately it burst out of a hole in the upper part of his skull. Thus his life air passed off. After the demon was dead, Kṛṣṇa, with His transcendental glance alone, brought all the boys and calves back to consciousness and came with them out of the mouth of the demon. While Kṛṣṇa was within the mouth of Aghāsura, the demon’s spirit soul came out like a dazzling light, illuminating all directions, and waited in the sky. As soon as Kṛṣṇa came out of the mouth of the demon with His calves and friends, that glittering effulgent light immediately merged into the body of Kṛṣṇa within the vision of all the demigods.
The demigods became overwhelmed with joy and showered flowers on the Supreme Personality of Godhead, Kṛṣṇa, and thus they worshiped Him. The denizens of heaven danced in jubilation, and the denizens in Gandharvaloka offered various kinds of prayers. Drummers beat drums in jubilation, the brāhmaṇas recited Vedic hymns, and all the devotees of the Lord chanted the words “Jaya! Jaya! All glories to the Supreme Personality of Godhead!”
When Lord Brahmā heard those auspicious vibrations, which sounded throughout the higher planetary system, he immediately came down to see what had happened. He saw that the demon was killed, and he was struck with wonder at the uncommon, glorious pastimes of the Personality of Godhead.
The gigantic mouth of the demon remained in an open position for many days and gradually dried up; it remained a spot of pleasure pastimes for all the cowherd boys.
The killing of Aghāsura took place when Kṛṣṇa and all His boyfriends were under five years old. Children under five years old are called kaumāra, from five years up to the tenth year they are called paugaṇḍa, and from the tenth year up to the fifteenth year they are called kaiśora. After the fifteenth year, boys are called youths. For one year there was no discussion of the incident of the Aghāsura demon in the village of Vraja. But when the boys attained their sixth year, they informed their parents of the incident with great wonder.
For Śrī Kṛṣṇa, the Supreme Personality of Godhead, who is far greater than such demigods as Lord Brahmā, it is not at all difficult to award one the opportunity of merging with His eternal body. This He awarded to Aghāsura. Aghāsura was certainly the most sinful living entity, and it is not possible for the sinful to merge into the existence of the Absolute Truth. But in this particular case, because Kṛṣṇa entered into Aghāsura’s body, the demon became fully cleansed of all sinful reactions. Persons constantly thinking of the eternal form of the Lord in the shape of the Deity or in the shape of a mental form are awarded the transcendental benediction of entering into the kingdom of God and associating with the Supreme Personality of Godhead. So we can just imagine the elevated position of someone like Aghāsura, into whose body the Supreme Personality of Godhead, Kṛṣṇa, personally entered. Great sages, meditators and devotees constantly keep the form of the Lord within their hearts, or they see the Deity form of the Lord in the temples; in that way they become liberated from all material contamination and at the end of the body enter into the kingdom of God. This perfection is possible simply by keeping the form of the Lord within the mind. But in the case of Aghāsura, the Supreme Personality of Godhead personally entered. Aghāsura’s position was therefore greater than the ordinary devotee’s or the greatest yogī’s.