Kṛṣṇa, the Supreme Personality of Godhead, thus entered the body of Devakī from the body of Vasudeva without being subject to any of the conditions of an ordinary living entity. Since Kṛṣṇa was there, it is to be understood that all His plenary expansions, such as Nārāyaṇa, and incarnations like Lord Nṛsiṁha and Varāha, were with Him, and They also were not subject to the conditions of material existence. In this way, Devakī became the residence of the Supreme Personality of Godhead, who is one without a second and the cause of all creation. Devakī became the residence of the Absolute Truth, but because she was confined within the house of Kaṁsa, she looked just like a suppressed fire, or like misused education. When fire is kept in a jug, the illuminating rays of the fire cannot be very much appreciated. Similarly, misused knowledge, which does not benefit the people in general, is not very much appreciated. So Devakī was kept within the prison walls of Kaṁsa’s palace, and no one could see her transcendental beauty, which resulted from her conceiving the Supreme Personality of Godhead.
Kaṁsa, however, saw the transcendental beauty of his sister Devakī, and he at once concluded that the Supreme Personality of Godhead had taken shelter in her womb. She had never before looked so wonderfully beautiful. He could distinctly understand that there was something wonderful within the womb of Devakī. In this way, Kaṁsa became perturbed because he was sure that the Supreme Personality of Godhead, who would kill him in the future, had now come. Kaṁsa began to think, “What is to be done with Devakī? Surely she has Viṣṇu or Kṛṣṇa within her womb, so it is certain that Kṛṣṇa has come to execute the mission of the demigods. And even if I immediately kill Devakī, His mission cannot be frustrated.” Kaṁsa knew very well that no one can frustrate the purpose of Viṣṇu. Any intelligent man can understand that the laws of God cannot be violated. His purpose will be served in spite of all impediments offered by the demons. Kaṁsa thought, “If I kill Devakī at the present moment, Viṣṇu will enforce His supreme will more vehemently. To kill Devakī just now would be a most abominable act. No one desires to kill his reputation, even in an awkward situation; if I kill Devakī now, my reputation will be spoiled. Devakī is a woman, and she is under my shelter; she is pregnant, and if I kill her, immediately my reputation, the results of my pious activities and my duration of life will all be finished.”
He further deliberated, “A person who is too cruel is as good as dead, even in this lifetime. No one likes a cruel person during his lifetime, and after his death, people curse him. On account of his self-identification with the body, he must be degraded and pushed into the darkest region of hell.” Kaṁsa thus meditated on all the pros and cons of killing Devakī at that time.
Kaṁsa finally decided not to kill Devakī right away but to wait for the inevitable future. But his mind became absorbed in animosity against the Personality of Godhead. He patiently waited for the delivery of the child, expecting to kill Him, as he had done previously with the other babies of Devakī. Thus being merged in the ocean of animosity against the Personality of Godhead, he began to think of Kṛṣṇa or Viṣṇu while sitting, while sleeping, while walking, while eating, while working—in all the situations of his life. His mind became so much absorbed with the thought of the Supreme Personality of Godhead that indirectly he could see only Kṛṣṇa or Viṣṇu around him. Unfortunately, although his mind was so absorbed in the thought of Viṣṇu, he is not recognized as a devotee because he was thinking of Kṛṣṇa as an enemy. The state of mind of a great devotee is also to be always absorbed in Kṛṣṇa, but a devotee thinks of Him favorably, not unfavorably. To think of Kṛṣṇa favorably is Kṛṣṇa consciousness, but to think of Kṛṣṇa unfavorably is not Kṛṣṇa consciousness.
At this time Lord Brahmā and Lord Śiva, accompanied by great sages like Nārada and followed by many other demigods, invisibly appeared in the house of Kaṁsa. They began to pray to the Supreme Personality of Godhead in select verses, which are very pleasing to the devotees and which award fulfillment of their desires. The first words they spoke acclaimed that the Lord is true to His vow. As stated in the Bhagavad-gītā, Kṛṣṇa descends to this material world just to protect the pious and destroy the impious. That is His vow. The demigods could understand that the Lord had taken His residence within the womb of Devakī to fulfill His vow, and they were very glad that the Lord was appearing in order to fulfill His mission.