SB 10.44.39

Kaṁsa had always been disturbed by the thought that the Supreme Lord was to kill him. Therefore when drinking, eating, moving about, sleeping or simply breathing, the King had always seen the Lord before him with the disc weapon in His hand. Thus Kaṁsa achieved the rare boon of attaining a form like the Lord's. KB 10.44.39 From the day Kaṁsa had heard he would be killed by the eighth son of Devakī, he was always thinking of Kṛṣṇa with His wheel in hand, and because he was very much afraid of his death, he was thinking of Kṛṣṇa in that form twenty-four hours a day, without stopping—even while eating, while walking and while breathing—and naturally he got the blessing of liberation. In the Bhagavad-gītā it is stated, sadā tad-bhāva-bhāvitaḥ: [Bg. 8.6] a person gets his next life according to the thoughts in which he is always absorbed. Kaṁsa was thinking of Kṛṣṇa with His wheel, which means Nārāyaṇa, who holds a wheel, conchshell, lotus flower and club. According to the opinion of authorities, Kaṁsa attained sārūpya-mukti after death; that is to say, he attained the same form as Nārāyaṇa (Viṣṇu). On the Vaikuṇṭha planets all the inhabitants have the same bodily features as Nārāyaṇa. After his death, Kaṁsa attained liberation and was promoted to Vaikuṇṭhaloka. From this instance we can understand that even a person who thinks of the Supreme Personality of Godhead as an enemy gets liberation or a place in a Vaikuṇṭha planet, so what to speak of the pure devotees, who are always absorbed in favorable thoughts of Kṛṣṇa? Even an enemy killed by Kṛṣṇa gets liberation and is placed in the impersonal brahma-jyoti. Since the Supreme Personality of Godhead is all-good, anyone thinking of Him, either as an enemy or as a friend, gets liberation. But the liberation of the devotee and the liberation of the enemy are not the same. The enemy generally gets the liberation of sāyujya, and sometimes he gets sārūpya liberation.