Complete purity alone grants entry to God's kingdom; all else is illusory servitude masquerading as freedom.Listen — Srila Prabhupada Uvaca
Śrīmad-Bhāgavatam 6.1.38 — December 20, 1970, Surat 701220SB-SURAT [56:47 Minutes] SB-06.01.38_701220SB-SURAT Prabhupāda: Back to Godhead means one must be completely pure. A slight impurity, He will not allow. Kingdom of God is so..., that no impure person can enter. Just like in your country...
Do you belong to USA? There are in every country, and so many, especially in your country, there are so many immigration to check whether contamination. Even they do not allow plants to be carried. Is it not? Indian man: Yes, yes. Prabhupāda: From one port to another.
Why? Checking the contents. So if in this material world such strict checkings are there, don't you think that one who enters..., one who wants to enter the kingdom of God, there is no checking? Anyone will be able to enter?
It is a commonsense affair. So kingdom of God means purity. If there is slight impurity, he will not be allowed. "Keep outside." And it is stated in the Bhagavad-gītā, yeṣāṁ anta-gataṁ pāpaṁ [Bg. 7.28].
Yeṣām, persons who have completely been freed from the contamination of sinful activities, yeṣāṁ anta-gataṁ papam janānāṁ puṇya-karmaṇām Simply engaged in pious activities, they can become a devotee. te dvandva-moha-nirmukt bhajante māṁ dṛḍha-vratāḥ [Bg. 7.28] These are clear statements. And the pillars of sinful activities, that is also mentioned in the Bhāgavata: striyaḥ sūnā pānaṁ dyūta yatrā pāpas catur-vidha [SB 1.17.38] Four kinds of sinful activities: illicit sex, and intoxication, and unnecessary killing of animals, and gambling. This..., all the slaughterhouses of the world are being maintained unnecessarily. That is recruiting simply sins. They are eating sin, and therefore the world is in trouble.
Simply committing. There is no necessity of killing animals. But here in India they are killing ten thousand cows daily, what to speak of Western countries. The people are so much addicted to sinful activities.
How they can be elevated? They are condemned. Only this movement, Kṛṣṇa consciousness, if they take to this movement, they can be saved. Otherwise, there is no saving. They must cycle round the 8,400,000 species of life—sometimes very happy, sometimes very sorry; sometimes Brahmā, sometimes the germ in the stool.