So the Kṛṣṇa consciousness, or devotional service, means purifying the senses. That's all. We haven't got to eradicate, get out of the sensual activities. No. We have simply to purify the senses. How you can get out of the senses? Because you are living entity, the senses are there. But the thing is that at the present moment, because we are materially contaminated, our senses are not getting full enjoyment. This is most scientific. So devotional service means purifying the senses. Sarvopādhi-vinirmuktaṁ tat-paratvena nirmalam (CC Madhya 19.170). Nirmalam means purification. How you can purify your senses? That is defined in Nārada-bhakti-sūtra. It is said that sarvopādhi-vinirmuktam. Purification of the sense means you have to be free from all kinds of designation. Our life is full of designation. Just like I am thinking "I am Indian," I am thinking "I am sannyāsī," you are thinking you are American, you are thinking "man," you are thinking "woman," you are thinking "white," you are thinking "black." So many designations. These are all designations. So purifying the senses means to purify the designation. And Kṛṣṇa consciousness means that "I am neither Indian nor European nor American nor this nor that. I am eternally related with Kṛṣṇa. I am the part and parcel of Kṛṣṇa." When we are fully convinced that "I am part and parcel of Kṛṣṇa," that is Kṛṣṇa consciousness and that is purification of your senses.
So as part and parcel of Kṛṣṇa, you have to serve Kṛṣṇa. That is your pleasure. Now we are trying to satisfy our senses, our material senses. When you become..., realize yourself that you are part and parcel of Kṛṣṇa, then you'll satisfy the senses of Kṛṣṇa, Govinda. And by satisfying His senses, your senses will be satisfied. Just like crude example—this is not spiritual—just like husband is understood as the enjoyer and the wife is considered as the enjoyed. But if the wife satisfies the senses of the husband, his (her) senses also satisfied. Similarly, just like you have got some itching on the body, and the part of your body, the fingers, itches on that body, the satisfaction also felt by the fingers also. Not that the particular part only is feeling the sensation of satisfaction, but the whole body is feeling this satisfaction sense. Similarly, Kṛṣṇa being the full, when you satisfy Kṛṣṇa, sense of Kṛṣṇa, Govinda, then the satisfaction of the whole universe takes place. This is the science. Tasmin tuṣṭe jagat tuṣṭa. The another example is just like if you satisfy the stomach in your body, then the whole body is satisfied. The stomach will issue such energy by digestion of the foodstuff that it will transform into blood, it will come into the heart, and from the heart it will be diffused all over the body, and all over the body the depression, the exhaustion which has undergone, that will be satisfied.
So this is the process of Kṛṣṇa consciousness. This is the science of Kṛṣṇa consciousness, and Kṛṣṇa is explaining personally. So yaj jñātvā, if we understand the science of Kṛṣṇa consciousness, then there will be nothing unknown. Everything will be known. It is such a nice thing.