Animal lives very content within his limitation. It doesn't like to improve. The best-contented living being is an ass. He has no complaint. So that is not civilization; That is not human life.

What is the contentment? If you have got the problems unsolved, that is ass's contentment. Ass does not know how to check death. He does not think of it. But a human being's intelligence says whether the disease can be checked, whether the death can be checked. That is human being. The ass cannot think. If we remain contented like an ass, so that is animal life. Still people carry on… But distinction between ass's life and human life is that the ass cannot estimate the impediments or the real obstacles of life(janma-mrityu-jara-vyadhi i.e, birth-death-old age-disease ->Refer Bhagavad Gita 13.8-12). A human being can see, and it is his duty how to overcome it.

The veda prescribes the highest culture which is varṇāśrama-dharma. The aim of the varṇāśrama divisions—brāhmaṇa, kṣatriya, vaiśya, śūdra, brahmacarya, gṛhastha, vānaprastha and sannyāsa—is to train one to control the senses and be content with the bare necessities. Without contentment one could not be happy even if he possessed the property of the entire world or the entire universe. In human society, therefore, the brahminical culture, kṣatriya culture and vaiśya culture must be maintained, and people must be taught how to be satisfied with only what they need. In modern civilization there is no such education; everyone tries to possess more and more, and everyone is dissatisfied and unhappy. The transcendental yoga is therefore established, to show how to be happy and content with minimum necessities of life and to save time for self-realization, which one can very easily achieve by chanting the mahā-mantra—Hare Kṛṣṇa, Hare Kṛṣṇa, Kṛṣṇa Kṛṣṇa, Hare Hare/ Hare Rāma, Hare Rāma, Rāma Rāma, Hare Hare.  But if we’re content at making a show of meditation by sitting very straight in lotus position and going into a trance like some sort of performer, then that is a different thing. But we should understand that such show-bottle performances have nothing to do with the actual perfection of yoga. The material disease cannot be cured by artificial medicine. We have to take the real cure straight from Kṛṣṇa.  
Materialists are certainly very much attracted by sexual intercourse. Yan maithunādi-gṛhamedhi-sukhaṁ hi tuccham [Srimad Bhagavatam 7.9.45]. Although one becomes a gṛhastha, or householder, to enjoy sex life to his heart’s content, one is never satisfied. Such a lusty materialist is like a goat, for it is said that if goats meant for slaughter get the opportunity, they enjoy sex before being killed. Human beings, however, are meant for self-realization.

According to brahminical culture, one should be content with whatever he obtains without special endeavour and should cultivate spiritual consciousness. Then he will be happy. The purpose of the transcendental yoga is to spread this understanding. People who do not have scientific spiritual knowledge mistakenly think that the members of the transcendental yoga are escapists trying to avoid material activities. In fact, however, we are engaged in real activities for obtaining the ultimate happiness in life. If one is not trained to satisfy the spiritual senses and continues in material sense gratification, he will never obtain happiness that is eternal and blissful.
We should have plain living and high thinking. For plain living, we must have sufficient land for raising crops and pasturing grounds for the cows. If there is sufficient grains and production of milk, then the whole economic problem is solved. You do not require any machines, cinema, hotels, slaughterhouses, brothels, nightclubs—all these modern amenities. People in the spell of maya are trying to squeeze out gross pleasure from the senses, which is not possible to derive to our heart's content. Therefore we are confused and baffled in our attempt to eschew eternal pleasure from gross matter. Actually, joyful life is on the spiritual platform, therefore we should try to save our valuable time from material activities and engage it in spiritual activities.