This human form of life is a chance to be trained to be agreeable to the orders of the Supreme Lord. To bring about this training in society is the mission of the Kṛṣṇa consciousness movement. As stated in the Bhagavad-gītā, the laws of material nature are very strict; no one can overcome the stringent laws of material nature. But one who becomes a surrendered soul and agrees to the order of the Supreme Lord can easily overcome those stringent laws. The example of Dhruva Mahārāja is very fitting. Simply by becoming agreeable to the orders of the Supreme Personality of Godhead and by developing love of Godhead, Dhruva got the chance to personally meet the confidential servants of Lord Viṣṇu face to face. What was possible for Dhruva Mahārāja is possible for everyone. Anyone who very seriously engages in devotional service can obtain, in due course of time, the same perfection of the human form of life.
(Srimad Bhagavatam-----4:12:22-----purport).

Due to our material association since time immemorial, we have accumulated heaps of dirty things in our minds. The total effect of this takes place when a living entity identifies himself with his body and is thus entrapped by the stringent laws of material nature and put into the cycle of repeated birth and death under the false impression of bodily identification. When one is strengthened by practicing bhakti-yoga, his mind is cleansed of this misunderstanding, and he is no longer interested in material existence or in sense gratification.
Bhakti, or devotional service, is characterized by vairāgya and jñāna. Jñāna refers to understanding that one is not his body, and vairāgya means disinterest in sense gratification. These two primary principles of separation from material bondage can be realized on the strength of bhakti-yoga.
(Srimad Bhagavatam-----4:21:32-----purport).

As the Lord says in Bhagavad-gītā (7.14), daivī hy eṣā guṇa-mayī mama māyā duratyayā: "This divine energy of Mine, consisting of the three modes of material nature, is difficult to overcome." The same word duratyaya, meaning "very difficult," is used here. Therefore one cannot surpass the stringent laws of material nature except by the mercy of the Supreme Lord. Nonetheless, although all materialists are baffled in their plans, they try again and again to become happy in this material world. Therefore they have been described as vimūḍha—first-class fools. As for Prahlāda Mahārāja, he was not at all unhappy, for although he was in the material world, he was full of Kṛṣṇa consciousness. Those who are Kṛṣṇa conscious, trying to serve the Lord, are not unhappy, whereas one who has no assets in Kṛṣṇa consciousness and is struggling for existence is not only foolish but extremely unhappy also. Prahlāda Mahārāja was happy and unhappy simultaneously.
(Srimad Bhagavatam-----7:9:43-----purport).

Since these activities are repeated, engaging in them is like chewing that which has already been chewed. If one can give up his ambition to engage in hackneyed material life and take to Kṛṣṇa consciousness instead, he will be liberated from the stringent laws of material nature. One does not need to make a separate attempt to become liberated. If one simply engages in the service of the Lord, he will be liberated automatically. As Śrīla Bilvamaṅgala Ṭhākura therefore says, muktiḥ svayaṁ mukulitāñjali sevate ’smān: "Liberation stands before me with folded hands, begging to serve me."
(Sri Caitanya Caritamrta-----2:13:142-----purport).

This very attachment to Kṛṣṇa makes one eligible to be transferred to His abode, Goloka Vṛndāvana. As we have learned from the previous chapter, to cross over the material world is to cross over the stringent laws of material nature. The stringent laws of material nature cannot check the progress of one who is attracted by the spiritual nature. This is confirmed in the Bhagavad-gītā by the Lord Himself: "Although the stringent laws of material nature are very difficult to overcome, one who surrenders unto the Lord can very easily cross over nescience." There is no influence of material nature in the spiritual world. As we have learned from the Second Canto of Śrīmad-Bhāgavatam, the ruling power of the demigods and the influence of material nature are conspicuous by their absence in the spiritual world.
(Krsna Book).