Pradyumna: "The path of enjoyment is inferior, but the path of sacrifice for the supreme cause is superior. The material existence of the living being is a diseased condition of actual life."
Prabhupāda: This pravṛtti-mārga is a diseased condition. Diseased condition means you have to remain. Just like if you are suffering from fever, doctor has prescribed you that "Don't take any solid food." But if you take, you'll increase your fever. That's all. If you have come here for sex life, if you increase your sex life, then you'll be bound up by the material laws. Again accept... If you want to increase your sex life, nature will give you facilities: "All right, you become a hog. You can have sex life without any discrimination." The hog has no discrimination, mother, sister. So nature will give you that facilities. "You want sex life? All right, you get. Un..., without any hindrance, take it."
Therefore the sādhana-bhajana means to come to the point of nil. Nidrāhāra-vihārakādi-vijitau **. These Gosvāmīs, they conquered over nidrā, āhāra. Nidrā means sleeping, āhāra means eating, and vihāra means sex. Nidrāhāra-vihārakādi-vijitau. You have to conquer. The more you conquer over these things, the more you are advanced. Because you have to make it nil altogether. Then you are eligible to go back to home, back to Godhead. Therefore we train our students: "No illicit sex, no gambling, no intoxication, no meat-eating"—the nivṛtti-mārga.