Devotee or Guest: I want to ask you . . . (indistinct) . . . how can we possibly know that one has attained Kṛṣṇa consciousness.
Prabhupāda: You have to think of Kṛṣṇa. Hmm? What did he say, question?
Hṛdayānanda: He wanted to know what are the symptoms of one who has become Kṛṣṇa conscious.
Prabhupāda: Symptoms? He's chanting always Hare Kṛṣṇa. Unless one is Kṛṣṇa conscious, why he'll take the trouble, twenty-four hours, "Hare Kṛṣṇa, Hare Kṛṣṇa, Hare Kṛṣṇa, Hare Kṛṣṇa"? This is the symptom. The symptom is further explained that as soon as you see one man and you remember Kṛṣṇa, that means he's Kṛṣṇa conscious. So our men, wherever they go, people say "Hare Kṛṣṇa!"—by seeing him only. Therefore the man is Kṛṣṇa conscious. This is the proof. That is the statement of Caitanya Mahāprabhu, "If by seeing one person you remember Kṛṣṇa, that person is Kṛṣṇa conscious."
Hṛdayānanda: (translating) Why it seems that when the soul comes into contact with material nature it becomes contaminated?
Prabhupāda: He wants to enjoy this material enjoyment. Just like everyone is going to the restaurant for eating something palatable, but we are not going; and somebody is going to cinema, but we are not going to the cinema. Similarly, there are two kinds of men: one is attracted, one is not attracted. Those who are not attracted, they are called nitya-siddha, eternally liberated. And those who are being attracted, they are called nitya-baddha, eternally conditioned. So you'll find always two classes of men. So one is attracted; one is not attracted. In the spiritual world the number of liberated person—many, many times greater than these conditioned soul. Just like the prison house and outside the prison house. The population outside the prison house, their number is very great, but within the prison house there are small number, criminals. So there are innumerable living entities. Out of them, some of them become attracted to this material enjoyment; others not. So one who does not want to serve Kṛṣṇa and wants to serve his senses, he's put into this material world. And he's given all facilities to enjoy, but he becomes entangled. This is the position.