During the rainy season, in the evening, there are many glowworms visible about the tops of trees, hither and thither, and they glitter just like lights. But the luminaries of the sky—the stars and the moon—are not visible. Similarly, in the Age of Kali, persons who are atheists or miscreants become very prominently visible, whereas persons who are actually following the Vedic principles for spiritual emancipation are practically obscured. This age, Kali-yuga, is compared to the cloudy season of the living entities. In this age, real knowledge is covered by the influence of the material advancement of civilization. The cheap mental speculators, atheists and manufacturers of so-called religious principles become prominent like the glowworms, whereas persons strictly following the Vedic principles or scriptural injunctions become covered by the clouds of this age. People should learn to take advantage of the actual luminaries of the sky—the sun, moon and stars—instead of the glowworms' light. Actually, the glowworms cannot give any light in the darkness of night. As clouds sometimes clear, even in the rainy season, and sometimes the moon, stars and sun become visible, so even in this Kali-yuga there are sometimes advantages. For example, sometimes Lord Caitanya's Vedic movement of distributing the chanting of the Hare Kṛṣṇa mantra is heard. People seriously eager to find real light should take advantage of this movement instead of looking toward the light of mental speculators and atheists.
(Krsna Book).

In these days of Kali-yuga, there are many rascals who think themselves to be as good as Kṛṣṇa and who cheat people into believing that thinking of them is as good as thinking of Lord Kṛṣṇa.
(Krsna Book).

In this modern age, Kali-yuga, the so-called brāhmaṇas have accepted the abominable position of śūdras or less and still want to pass as qualified brāhmaṇas.
(Krsna Book).

The ultimate purpose of offering oblations in sacrifice is to please Lord Viṣṇu. But in this Age of Kali it is very difficult to collect the different articles required for offering sacrifices. People have neither the means to collect the required paraphernalia nor the necessary knowledge or tendency to offer such sacrifices. Therefore, in this Age of Kali, when people are mostly unfortunate, full of anxieties and disturbed by various kinds of calamities, the only sacrifice recommended is the performance of saṅkīrtana-yajña. Worshiping Lord Caitanya by the saṅkīrtana-yajña is the only recommended process in this age.
(Krsna Book).

It is said that this Age of Kali is three-fourths devoid of religious principles. Hardly one fourth of the principles of religion are still observed in this age. But by the mercy of Lord Kṛṣṇa, not only has this void of Kali-yuga been completely filled, but the religious process has been made so easy that simply by rendering transcendental loving service unto Lord Kṛṣṇa by chanting His holy names, Hare Kṛṣṇa, Hare Kṛṣṇa, Kṛṣṇa Kṛṣṇa, Hare Hare / Hare Rāma, Hare Rāma, Rāma Rāma, Hare Hare, one can achieve the highest result of religion, namely, being transferred to the highest planet within the spiritual world, Goloka Vṛndāvana.
(Krsna Book).

Now, if one consults the accounts ledger of India's serfdom and freedom, and views the contents from a spiritual perspective, the conclusion will be as follows: The four yugas, or ages, namely Satya, Tretā, Dvāpara, and Kali, add up to 4,320,000 years. Kali-yuga, which lasts 432,000 years, began from the time of Mahārāja Parīkṣit's rule, some five thousand years ago. For approximately one thousand of these five thousand years—i.e., since the invasion of Mohammad Ghori in A.D. 1050—India has been experiencing foreign rule. In other words, when we calculate according to scripture, India has exercised absolute sovereignty over the entire planet Earth for a period of 3,772,000 years, till Mahārāja Parīkṣit's rule. Hence the meagre thousand years of foreign subjugation are not such a lamentable thing.
(Renunciation through Wisdom).

At present we are living in the thick of Kali-yuga. The people of this age are mostly short-lived, misguided, unfortunate and always tormented by disease and distress. Therefore it is not easy for them to appreciate the words of the scriptures. The followers of the world's various religions—Hindus, Muslims, Christians, Buddhists, and so on—are transgressing the scriptural injunctions of their own faiths to varying degrees and living as they like. Many people, far from following scriptural injunctions, ridicule the sacred texts and thus gradually slide down to a demoniac life of unrestricted sense enjoyment. The Supreme Lord and His devotees are very much concerned about the deliverance of these conditioned souls afflicted by the ill influence of Kali-yuga. The devotees, or Vaiṣṇavas, are the most compassionate, saintly souls, and thus they ardently desire to deliver the fallen living entities. The Supreme Lord always responds to the desires of these Vaiṣṇavas, and so He answers their prayers for the salvation of these suffering souls of Kali-yuga.
(Renunciation through Wisdom).

Seeing the miserable condition of the living entities in the Kali-yuga, Lord Caitanya, the savior of the fallen souls, has expounded a method for their salvation. This method is taken from the scriptures and is applicable to everyone. In previous ages, one could study the Vedas and purify oneself by living according to those instructions. But it is impossible for the present population to properly execute scriptural injunctions, which includes strictly following vows of celibacy. One who is extremely degraded and sinful cannot find the accurate path to realization by studying the Vedas. It is a waste of time even to explain the meaning of the Vedas to such persons, who are devoid of proper up-bringing and discipline. Lord Caitanya has indeed showered His mercy upon these Kali-yuga people. So there is no doubt that those who are unable even to receive this mercy from Lord Caitanya are forever bereft of saving grace. As for those fortunate souls who, after realizing the greatness of Lord Caitanya's mercy, have accepted it—they have escaped the punishments of māyā, or "the dispensation of providence." But for those who have agreed to come under the influence of the cycle of karmic reactions and are being pummeled about by māyā, the Supreme Lord has arranged the process of karma-yoga, or fruitive activities with the aim of sacrifice to the Supreme Lord.
(Renunciation through Wisdom).

Humanity, now in the grips of the evil influence of the Age of Kali, has become callous to any spiritual culture. Thus people pass their time in the animalistic activities of eating, sleeping, mating, and defending. What to speak of cultivating spiritual knowledge about the Supreme Lord, Kṛṣṇa, they cannot even spare the time for religious rituals or the pursuit of transcendental knowledge. If one strictly follows the scriptural directions for cultivating karma and jñāna, one purifies his consciousness enough to understand the science of Kṛṣṇa to a certain degree. The final conclusion of jñāna is that once one attains the state of oneness with the Absolute, then the doors of an even higher state, that of devotional service to Lord Kṛṣṇa, open up. Since this state of oneness is practically impossible for the people of Kali-yuga to attain, in the Bhagavad-gītā Lord Kṛṣṇa Himself has taught the science of devotional service to Himself. Then, knowing that the unfortunate human beings of this age would misunderstand even His own words, Lord Kṛṣṇa again appeared—this time in the form of Caitanya Mahāprabhu, a pure devotee of the Lord—to teach the world the essence of the Bhagavad-gītā through His personal example.
(Renunciation through Wisdom).

Many may claim that in the modern age material scientists have helped increase agricultural yield. But we fearlessly proclaim that it is precisely such atheistic views that have brought the world to the present acute food crisis. If we are not careful, the day will soon come when fruits will be reduced to just skin and seed, cows' udders will dry up, and paddy fields will grow only grass. The scriptures predict that these things will come to pass in the Kali-yuga.
(Renunciation through Wisdom).

When presented with a colorful glass doll and a diamond, a child will naturally be attracted to the doll and not the priceless jewel. Similarly, the people of Kali-yuga, endowed as they are with limited intelligence, have rejected the priceless diamond of devotional service to Kṛṣṇa and instead chosen the cheap doll of fruitive activity and dry speculation. Just as the child cannot comprehend that the invaluable diamond can purchase many thousands of cheap glass dolls, so the less intelligent people of Kali-yuga cannot understand that kṛṣṇe bhakti kaile sarva-karma-kṛta haya: "By rendering transcendental devotional service to Lord Kṛṣṇa, one automatically performs all subsidiary activities."
Those who know the science of Kṛṣṇa consciousness automatically know of subsidiary subjects like fruitive activity, speculative knowledge, yoga, charity, penance, austerity, and chanting mantras. Lord Kṛṣṇa confirms this in the Śrīmad-Bhāgavatam:
By executing devotional service to Me, My devotees easily acquire everything that can be attained by performing penances, fruitive activity, philosophical speculation, renunciation, yoga, charity, religiosity, and other pious acts.
(Renunciation through Wisdom).