Sri Chaitanya Mahaprabhu preached Bhagavat Dharma - shuddha bhakti dharma - and taught the same by practising it. Kapila Bhagavan in Srimad Bhagavat, 3rd Canto, clearly pointed out that the real quality of a sadhu is exclusive, one-pointed devotion to the Supreme Lord. Without this no one can become a real sadhu. Meera Bai has also substantiated this.

The last message of Bhakti Siddhanta Saraswati Goswami Thakur to his disciples before his disappearance in Baghbazar Gaudiya Math, Calcutta was: ‘With the sole purpose of worshipping Sri Hari, we should somehow carry on our life in this most non-eternal world. We should not give up Hari-Bhajan in spite of hundreds of calamities, hundreds of obstacles, hundreds of reproaches and harassments. Don't be discouraged from serving Krishna without deceitfulness despite seeing that the majority of the worldly people are not accepting it. Don't give up your worship of Sri Krishna and your spiritual devotional wealth – listening to Krishna-Katha and chanting - under any circumstances. Always perform Hari-Kirtan with the two qualities of being humbler than a blade of grass and more tolerant than a tree. We will be able to realise the transcendental delightfulness of service to Sri Krishna when we become entitled to do `Aprakrita Harinam', remaining aloof from all the attractions and repulsions of this world. All arrangements in this world are momentary. We should never be indifferent to or dislike Sri Krishna Sankirtan Yajna, which will bestow on us all attainments.’

Shuddha Krishna Bhakti in this world is most scarce as stated in the scriptures. Amongst millions of emancipated souls we will find one Krishna Bhakta. If we want quality, we cannot get quantity.