Prabhupāda: Our policy is tat-paratvena nirmalam (CC Madhya 19.170). You can purify the activities of the senses, being engaged in Kṛṣṇa consciousness. Then senses will not disturb you. If you want to control the senses, you have to control the tongue first of all. Then you will be able to control other senses very easily. So you give tongue the engagement of chanting Hare Kṛṣṇa, and for tasting Kṛṣṇa prasādam you'll find that your other senses are already controlled. This is the key of controlling our senses, the tongue. And if you give privilege and indulgence to the tongue, you'll never be able to control other senses. This is the secret of controlling senses. Go on.
Tamāla Kṛṣṇa: 69: "What is night for all beings is the time of awakening for the self-controlled, and the time of awakening for all beings is the night for the introspective sage." Purport: "There are two classes of intelligent men. The one is intelligent in material activities for sense gratification, and the other is introspective and awake to the cultivation of self-realization. Activities of the introspective sage or thoughtful man are night for persons materially absorbed. Materialistic persons remain asleep during such a night due to their ignorance of self-realization. The introspective sage, however, remains alert in that night of the materialistic man."
Prabhupāda: Night means when people sleep, and day means when they are awake. This is the understanding of day and night. So one, the materialistic persons, they are sleeping in the matter of spiritual understanding. So therefore the activities which we find in daytime of the materialistic person, actually that is night. For the spiritualistic person, they see that these people they got the facility of self-realization, this human form of life. How they are wasting by sleeping. And the materialistic persons, they are seeing, "Oh, these Kṛṣṇa conscious young boys, they have given up everything and they are chanting Hare Kṛṣṇa. How nonsense. They are sleeping." So you see? So in the vision of the materialistic person, these activities are night, sleeping. And for the self-realized person, these activities are sleeping. You see? Just the opposite. They are seeing the Kṛṣṇa conscious person as wasting time and the Kṛṣṇa conscious person is seeing them as wasting time. This is the position. Go on.
Tamāla Kṛṣṇa: "Such sages feel transcendental pleasure in the gradual advancement of spiritual culture, whereas the man in materialistic activities, being asleep to self-realization, dreams of varieties of sense pleasure."
Prabhupāda: Yes. They are dreaming, "Now we shall do this. Next time, I shall have this. Next time, I shall have this. Next time, I shall kill that enemy. Next time, I shall do this." They are planning like that. Go on.
Tamāla Kṛṣṇa: "...feeling sometimes happy and sometimes distressed in his sleeping condition. The introspective man is always indifferent to materialistic happiness and distress."
Prabhupāda: The introspective man who is after self-realization, he knows very well, "Suppose if I do in future such and such big business, or such... I can construct such big skyscraper house." But because he's introspective, he knows that "What I shall do with all these things? As soon as I exit from the platform, everything remains here, and I take another form of body, begins another life." That is introspection.