Our conditional life of material existence is due to dirty things in our heart. Originally we are all Kṛṣṇa conscious living beings, but due to our long material association in different species of life, varying to 8,400,000's of different forms of life, we are accustomed to transmigrating from one form of body or another.
In such cycle of birth and death, I, you and every one of us, although originally spirit soul and therefore qualitatively one in constitution with the Supreme Lord Kṛṣṇa, we have identified with this material form of life, subjected to various forms of material pangs, specifically in the shape of birth, death, old age and disease.
The whole material civilization is a process of hard struggle of life, ending in birth, death, old age and disease. The human society is struggling fruitlessly against these perpetual problems of life in different ways. Some of them are making material attempts and some of them are making partially spiritual attempts.
The materialists are trying to solve the problems by achievement of scientific knowledge, education, philosophy, morality, ethics, poetic thoughts, etc., and the spiritualists are trying to solve the problems by different theses like discerning matter from spirit in various ways. And some of them are trying as mystic yogīs to arrive at the right conclusion. But all of them must know it for certain that in this age of Kali, or the age of quarrel and dissension, there is no possibility of success without accepting the process of Kṛṣṇa consciousness.
Śrīla Śukadeva Gosvāmī, the speaker of Śrīmad-Bhāgavatam, has therefore recommended that everyone, be he a fruitive worker, a salvationist or a mystic yogī, if actually he wants to be freed from the pangs of material existence, he must take to the process of chanting Hare Kṛṣṇa, Hare Kṛṣṇa, Kṛṣṇa Kṛṣṇa, Hare Hare / Hare Rāma, Hare Rāma, Rāma Rāma, Hare Hare.
Kṛṣṇa consciousness is therefore an art of changing our hearts by purification from the dust of material desires. We cannot stop our desire, because as living entity, desiring is the component part of our constitution. Therefore we cannot give up our desire, but we can purify our desire. Killing of desire is no solution, but curing the desires, diseased condition of desire, is the right solution. As such, therefore, this dust of misunderstanding is cleared off. We can see our real position of life and make steady progress towards the ultimate goal of life.
We have forgotten the ultimate goal of our life due to lack of Kṛṣṇa consciousness. Therefore our entire activity should be executed in Kṛṣṇa consciousness to revive our lost relationship with God, or Kṛṣṇa. We do not prohibit anyone to cease from the present occupational duties, but we simply recommend that he execute such duties in Kṛṣṇa consciousness. Lord Śrī Caitanya Mahāprabhu never recommended changing one's position of life, but He favored the process of hearing about Kṛṣṇa from the right, bona fide source.
One should give up the artificial process of philosophical speculation to arrive at the real goal of life, but one should submissively hear about the philosophy of Kṛṣṇa consciousness, which is generally inculcated in Śrīmad Bhagavad-gītā and Śrīmad-Bhāgavatam.If one submissively chants the mahā-mantra, Hare Kṛṣṇa, Hare Kṛṣṇa, and hears the message of Kṛṣṇa as it is in the Bhagavad-gītā, without any malinterpretation, then he does not have to change his position by some artificial method. Simply by the method of chanting and hearing, he comes to a transcendental position which will help him to know God, His name, His form, His quality, His pastimes, His paraphernalia and so on.