We have to earn some wealth just in order to push on with our material existence. In exchange for that wealth, we have to secure the necessities of life, and primarily, we have to cook something for our hungry stomach. For if we do not eat, we cannot keep a healthy body, and if we do not keep a healthy body, we cannot earn our livelihood. It is very difficult to ascertain which exigency is the cause of the other, but we can describe this process of reciprocity as the wheel of work. And to travel all over the universe is to circumambulate the wheel of work. There is no estimation of our circumambulation and the concomitant distress resulting from such travel life after life for illusory, material happiness, which is compared to the will o' the wisp. In the capacity of a false enjoyer, without any obedience to the supremely powerful Lord, the living soul searches for permanent happiness life after life, but he does not know where the real happiness is. Therefore, Prahlāda Mahārāja says that no one knows that his ultimate goal of self-realization is to reach Viṣṇu, the all-powerful Godhead.
Without knowing the goal of our self-realization, we are aimlessly voyaging on the ocean of material existence, life after life. And tossed as we are by the waves of action and reaction, we cannot ascertain the volume of our distresses in undertaking such an ominous journey. Here we must know that the goal of our voyage is to reach the Absolute Truth, Viṣṇu, the all-pervading Godhead. Śrī Kṛṣṇa confirms this goal of life by saying that everything must be performed for the satisfaction of Viṣṇu, or Yajña. In the Ṛg Veda the same truth is described: Viṣṇu is the Supreme Deity, and thus all the subordinate gods, the suris, look to Viṣṇu and His lotus feet. The author of the Vedas is the Personality of Godhead Himself. Consequently, His Bhagavad-gītā is the finest summary of all the teachings in the Vedas (the books of knowledge), and there is no doubt about it. The instruction is, therefore, that we must do everything for the satisfaction of Viṣṇu and Viṣṇu only, if we want to be free of the bondage to the wheel of our work.
Formerly, the people of India (now misnamed as "Hindus") followed varṇāśrama-dharma or sanātana-dharma, the system that organizes human affairs according to four social orders and four spiritual orders. Those in the three higher social orders—namely, the brāhmaṇas (the instructive order), the kṣatriyas (the administrative order), and the vaiśyas (the productive order)—all used to lead the life of Vaiṣṇavism, or centering every action upon the Supreme Deity, Viṣṇu. In all the four spiritual orders—the student, the householder, the retired, and the renounced—and especially the householder order, Viṣṇu was being worshiped. The brāhmaṇa householders, particularly, used to worship Viṣṇu without fail, and even now the descendants of those brāhmaṇas continue to worship Viṣṇu daily as their family Deity.
These spiritually cultured people used to do everything for the sake of Viṣṇu. They used to earn wealth according to their capacity for the service of Viṣṇu. With their earnings they used to acquire eatables, and the eatables were cooked for the worship of Viṣṇu. Then the meal offered to satisfy Viṣṇu became prasādam—"the Lord's mercy," the remnants of His meal—and could be accepted by them. What was possible in days gone by and is still being done here and there even today can again be made possible in all spheres of life, by a little adjustment suitable to time, place, and people. In this way, everyone can get free of the binding network of actions and reactions.