The cosmic manifestation has been made possible because of the entrance of the Supreme Personality of Godhead as Mahā-Viṣṇu within this material world. The total material energy is agitated by the glance of Mahā-Viṣṇu, and only then does the interaction of the three material qualities begin. Therefore it should be concluded that whatever material facilities we are trying to enjoy are available only due to the mercy of the Supreme Personality of Godhead.
Within the body there are five different departments of existence, known as anna-maya, prāṇa-maya, mano-maya, vijñāna-maya and, at last, ānanda-maya. In the beginning of life, every living entity is food conscious. A child or an animal is satisfied only by getting nice food. This stage of consciousness, in which the goal is to eat sumptuously, is called anna-maya. Anna means "food." After this one lives in the consciousness of being alive. If one can continue his life without being attacked or destroyed, one thinks himself happy. This stage is called prāṇa-maya, or consciousness of one's existence. After this stage, when one is situated on the mental platform, his consciousness is called mano-maya. The materialistic civilization is primarily situated in these three stages, anna-maya, prāṇa-maya and mano-maya. The first concern of civilized persons is economic development, the next concern is defense against being annihilated, and the next consciousness is mental speculation, the philosophical approach to the values of life.