A pure devotee is the supreme transcendentalist and one has to receive his mercy for one's dormant Krishna Consciousness to be awakened. One has to associate with pure devotees. If one has firm faith in the words of a great soul, pure devotional service will awaken.
The flow of devotional service is so potent that any onlooker also becomes liberated from the influence of the modes of passion and ignorance.
If, by the grace of the Lord and the great-souled devotees of the Lord, a living being becomes fortunate enough to associate with the unadulterated devotees of the Lord and gets a chance to hear the unadulterated glories of the Lord, certainly the flow of devotional service takes place like the flow of a river.
While performing devotional service in the association of pure devotees in full Krishna Consciousness, there are certain things which are required to be vanquished altogether. The most important thing one has to surmount is weakness of the heart. All the problems of material existence are due to these weaknesses of the heart.
The root cause of devotional service to Lord Krishna is association with advanced devotees. Even when one's dormant love for Krishna awakens, association with devotees is still most essential.
The more, progress is made in devotional service under the guidance of the Bhagavatas, the more one becomes fixed in the transcendental loving service of the Lord. The messages of the book Bhagavata, therefore, has to be received from the devotee Bhagavata and the combination of these two Bhagavatas will help the neophyte devotee to make progress.