Maha Mantra– mantra for kali yuga.

https://vyasaonline.com/encyclopedia/kali-yuga/

This Age of Kali is full of unlimited faults. Indeed, it is just like an ocean of faults (doṣa-nidhi). But there is one chance, one opportunity. Kīrtanād eva kṛṣṇasya mukta-saṅgaḥ paraṁ vrajet: simply by chanting the Hare Kṛṣṇa mantra, one can be freed from the contamination of Kali-yuga and, in his original spiritual body, can return home, back to Godhead. This is the opportunity of Kali-yuga.

When Kṛṣṇa appeared, He gave His orders, and when Kṛṣṇa Himself appeared as a devotee, as Śrī Caitanya Mahāprabhu, He showed us the path by which to cross the ocean of Kali-yuga. That is the path of the Hare Kṛṣṇa movement. When Śrī Caitanya Mahāprabhu appeared, He ushered in the era for the saṅkīrtana movement. It is also said that for ten thousand years this era will continue. This means that simply by accepting the saṅkīrtana movement and chanting the Hare Kṛṣṇa mahā-mantra, the fallen souls of this Kali-yuga will be delivered. After the Battle of Kurukṣetra, at which Bhagavad-gītā was spoken, Kali-yuga continues for 432,000 years, of which only 5,000 years have passed. Thus there is still a balance of 427,000 years to come. Of these 427,000 years, the 10,000 years of the saṅkīrtana movement inaugurated by Śrī Caitanya Mahāprabhu 500 years ago provide the opportunity for the fallen souls of Kali-yuga to take to the Kṛṣṇa consciousness movement, chant the Hare Kṛṣṇa mahā-mantra and thus be delivered from the clutches of material existence and return home, back to Godhead.

Source : https://vedabase.io/en/library/sb/8/5/23/

“In this Age of Kali, people who are endowed with sufficient intelligence will worship the Lord, who is accompanied by His associates, by performance of saṅkīrtana-yajña.” Other yajñas prescribed in the Vedic literatures are not easy to perform in this Age of Kali, but the saṅkīrtana-yajña is easy and sublime for all purposes, as recommended in Bhagavad-gītā also (9.14).

Source : https://vedabase.io/en/library/bg/3/10/

https://vanimedia.org/