"A devotee travels all over the country, from door to door, preaching, 'Be Krishna conscious. Be a devotee of Lord Krishna. Don't spoil your life in simply fulfilling your animal propensities. Human life is meant for self-realization, or Krishna consciousness.' These are the preachings of a sadhu. He is not satisfied with his own liberation. He always thinks about others. He is the most compassionate personality towards all the fallen souls. One of his qualifications, therefore, is karunika, great mercy to the fallen souls."
(Srimad-Bhagavatam 3.25.21, Purport)
.
