If an ordinary man does not eat, he will grow weak and die. Similarly, if a devotee does not taste the transcendental pastimes of Lord Chaitanya Mahaprabhu and Lord Krishna, he will gradually weaken and die spiritually.
It is the aspiration of a devotee that while he chants the Hare Krsna maha-mantra his eyes will fill with tears, his voice falter and his heart throb. These are good signs in chanting the holy name of the Lord.
Purport on Chaitanya Caritamrta Adi Lila 7.81
Everything that can be achieved by fruitive activities, penance, knowledge, detachment, mystic yoga, charity, religious duties and all other means of perfecting life is easily achieved by My devotee through loving service unto Me. If somehow or other My devotee desires promotion to heaven, liberation, or residence in My abode, he easily achieves such benedictions.
Devotees solely engaged in the devotional service of the Supreme Personality of Godhead, Narayana, never fear any condition of life. For them the heavenly planets, liberation and the hellish planets are all the same, for such devotees are interested only in the service of the Lord.
Lord Chaitanya, however, has recommended only one yajna, or sacrifice, called the sankirtana-yajna, the chanting of Hare Krishna, in which everyone can take part. Thus both devotees and fruitive workers can derive equal benefit from the performances of sankirtana-yajna.
Purport on Srimad bhagavatam 1.16.20
In Jagannatha Puri Chaitanya Mahaprabhu’s only occupation was holding Sankirtana at least four hours every day and distributing prasadam to the devotees.