Because the more you advance in material civilization, the more you become complicated. The real purpose is to go back to home, back to Godhead. We are missing the point. There is no guarantee. We have been given this chance of human form of body by nature's way, by the evolutionary process, coming through, transmigrating through 8,400,000 species of life. We have got this human form of life, developed consciousness, to understand God, not increasing the comfort from bullock cart to motorcar. No. Not for this purpose.
The so-called scientist, they are thinking that we are advancing in civilization from the primitive form, transport by bullock cart to motorcar. But that is not actually advancement. We are missing the point that this human form of life was meant for realizing God, realizing self. But we are misusing that higher intelligence and consciousness for manufacturing motorcar. And they are very much proud of advancement.
Na te viduḥ svārtha-gatiṁ hi viṣṇum (SB 7.5.31). This is described in the Śrīmad-Bhāgavata in one verse. Na te viduḥ svārtha-gatiṁ hi viṣṇuṁ durāśayā ye bahir-artha-māninaḥ. These rascals, they do not know what is the aim of life. They are captivated by the external energy of God. Andhā yathāndhair upanīyamānās te 'pīśa-tantryām uru-dāmni-baddhāḥ. They are led by blind leaders.