Prabhupāda: There are four things: loke vyavāyam... Vyavāya—sex life, and meat-eating. Āmiṣa. Āmiṣa means eating meat, fish, eggs. So, vyavāya means sex. Sex and meat-eating, non-vegetarian diet. Mada-sevā, intoxication. Mithyā sa jantuḥ. Every conditioned soul has natural inclination. Pravṛtti. But one has to control that. That is human life. If you put yourself in the waves of natural inclination, that is not human life. You have to restrict. The whole human life is meant for learning restriction. That is human life. That is perfect Vedic civilization. Tapo divyaṁ yena śuddhyet sattvam (SB 5.5.1). One has to purify his existence. What is that existence? I am spirit, ever existing, eternal. Now I have contaminated this matter, therefore I am suffering. So I have to purify. Just like you have to get free from the diseased condition. When you get fever you take treatment. Not unrestricted enjoyment. The doctor says, "Don't do this, don't do this, don't do this." Similarly this human form of life is to get out of this diseased condition of life having a material body. If we don't restrict then where is the treatment? Where is the cure? The whole system is restriction. Tapo divyam (SB 5.5.1). Just to concentrate one's activities in austerities, penances, for transcendental realization. That is human form of life.
But there are different orders of social society: brahmacārī, gṛhastha, vānaprastha, sannyāsa. The whole process is to restrict. But gṛhastha, householder means giving a little license who cannot completely restrict sex life. That's all. Gṛhastha does not mean unrestricted sex life. If you have known this married life like that, that's a wrong conception. You have to control if you want to get out of this diseased condition of life. You cannot get out of disease and unrestrictedly go on enjoying your senses. No. That is not possible. Yad indriya-prītaya āpṛṇoti na sādhu manye yata ātmano 'yam asann api kleśada āsa dehaḥ (SB 5.5.4). Those who are indulging unrestrictedly in sense enjoyment civilization, that is not good. Because that will lead him to accept next again this material body. Maybe human body or animal body or any body. But he has to accept this body. And as soon as you accept this body then you'll have to undergo the threefold miseries of the body. Birth, death, old age, diseases. These are the symptoms of threefold miseries.
So people, one has to understand scientifically these things but they are neglecting. So therefore continuing suffering. They do not care for suffering also. Just like the animals, they are suffering, but they do not care for it. they forget. So practically this sense gratification civilization means animal civilization. A little polished, that's all.
Devotee: Prabhupāda? Is the samādhi which is the perfection of this eightfold yoga system the same as the samādhi of bhakti-yoga?
Prabhupāda: Yes. Samādhi means to absorb the mind with Viṣṇu. That is samādhi. So if you absorb your mind with Kṛṣṇa then it is samādhi. (break) Any inquiry? He'll ask. All right.
Young boy: Swamiji? You said that if you eat too much you will pay. But how about the devotee? How about when they eat too much prasāda?
Prabhupāda: You want to eat more?
Young boy: I just want to know how.
Prabhupāda: You think you are eating more? So you can eat more. Yes, you can eat more. Yes, it is medical advise, that there are two kinds of mistakes in eating. Over-eating and under-eating. So under-eating mistake for old man is very good. And over-eating mistake for boys, that is good. So you can overeat. I cannot.
Young boy: How about Tamāla and Viṣṇujana? (laughter)
Prabhupāda: He cannot. You can. You can eat as much as you like. Free pass. (laughter) Yes.
Viṣṇujana: Prabhupāda? In the material world there are instruments to measure different kinds of energy. How does one measure, what kind of instrument, how does he develop it, to measure the spiritual energy?
Prabhupāda: Material energy, your question is, just like energy in electricity?
Viṣṇujana: We can measure that with certain instrument. But what is the instrument for measuring Kṛṣṇa's spiritual energy?
Prabhupāda: That instrument you have got. This mṛdaṅga and the cymbal. Just vibrate. It is very simple instrument. The instrument is your tongue. Chant Hare Kṛṣṇa. You have got the, everyone has got, you haven't got to purchase. The instrument is your ear. Simply hear vibration. You have got all the instruments with you. You haven't got to purchase or hire from anywhere. You have got the tongue and you have got the ear. Chant Hare Kṛṣṇa and use this instrument to hear. Finished. All perfection is there. It doesn't require to be educated scientist and philosopher, this or that, nothing. Simply you chant Hare Kṛṣṇa and hear. Everything is there. Everyone has got these instruments. You haven't got to pay any tax. You use electrical energy you have to pay for it. But here you have got everything complete. Pūrṇam idaṁ pūrṇam adaḥ (Īśopaniṣad, Invocation). Everything created by God is complete. Don't you see this earth? Take the aggregate existence of this earth. It is complete. There is sufficient water stock in the sea and oceans. The sunlight is acting, evaporating the water and it is turned into ocean. Then it is overcast all over the land and there is production. And there is river flowing down. You stock your water tank high, and there are mountain heads, there is stock of water and all year the river is flowing, supply water. Don't you see how nice brain it is? Can you pour water? If you want to evaporate hundred gallons of water you have got to make so many necessary arrangements. And here, millions of tons water is taken away immediately from the ocean and sea and turned into cloud, light cloud so that it may not fall down immediately. You see? Not like a tank. And it is reserved on the head of the mountain and it is sprayed all over the land so everything is there. You require water to produce grains, vegetables. So everything is there.