CC Madhya 25.198

prabhu kahe, — ihāṅ haite yāha’ vṛndāvana
nirantara kara kṛṣṇa-nāma-saṅkīrtana
Word for word: 
prabhu kahe — the Lord advised; ihāṅ haite — from this place; yāha’ vṛndāvana — go to Vṛndāvana; nirantara — incessantly; kara — perform; kṛṣṇa-nāma-saṅkīrtana — chanting of the holy name of Kṛṣṇa.
Translation: 
The Lord advised him, “Go to Vṛndāvana and chant the Hare Kṛṣṇa mantra constantly.”
Purport: 

This is a solution to all sinful activities. In this Age of Kali everyone is perplexed by so many inconveniences — social, political and religious — and naturally no one is happy. Due to the contamination of this age, everyone has a very short life. There are many fools and rascals who advise people to adopt this way of life or that way of life, but real liberation from life’s perplexities means preparation for the next life. Tathā dehāntara-prāptir dhīras tatra na muhyati. One should be situated in his spiritual identity and return home, back to Godhead. The simplest method for this is recommended herein by Śrī Caitanya Mahāprabhu. We should constantly chant the holy names of the Lord, the Hare Kṛṣṇa mahā-mantra. Following in the footsteps of Śrī Caitanya Mahāprabhu, the Kṛṣṇa consciousness movement is recommending this process all over the world. We are saying, “Chant the Hare Kṛṣṇa mahā-mantra, be freed from all the complexities of life, and realize Kṛṣṇa, the Supreme Personality of Godhead. Engage in His devotional service and perfect your life so that you can return home, back to Godhead.”