“Unless one is a resident of Krishna Loka, one cannot be a Spiritual Master. That is the first proposition. A layman cannot be a Spiritual Master, and if he becomes so then he will simply create disturbance […] So to summarize the whole thing, it is to be understood that a bona fide Spiritual Master is a resident of Krishna Loka.” Srila Prabhupada Letter, June 10

Relevant Conclusion: Gaurahari Das. Srila Prabhupada, being a genuine acharya, as well as the Vedas, conclude the following. The ultimate goal of having such a spiritual master that is a resident of Vrndavan is to also become a resident of Vrndavan. What is unclear to most vaishnavas, both Gurus and their followers, is the qualities and symptoms of a genuine resident of Vrndavan. In this way most vaishnavas are deceived, because their Gurus or followers do not manifest outwardly the intense loving bodily and emotional symptoms of ecstatic devotion that the residents of vrndavan displayed openly and naturally 5,000 years ago. The view of the wonderful qualities of ecstatic worship was sealed within the confines of vrndavana. It is even doubtful that the alleged contemporary raganuga societies are actually genuine, as their Spiritual Masters almost always teach their disciples, that it is a offense to cry tears of devotion before others in their worship. They are told to suppress such symptoms. Therefore neither Guru nor disciples ever display or prove to the world that they are truthfully what they claim to be. The best they do is to give memorized rasa filled verses without the genuine ecstatic relish, and follow up with speculative purports on those verses.
The purpose of Lord Caitanyas recent incarnation was to taste and showcase intense devotional ecstatic relish before the publics view the beautiful worship of Krishna, with the rarely seen natural intense ecstatic spiritually emotional moods. 

Our sanga, ( Lord Caitanyas Amazing Grace Place) has been instructed by the current disciplic succession, to revive this kind of rare worship again, as well as attract the public to take to this immensely joyous worship of Krishna. This very easily liberates the soul from the cycle of birth and death, as well as bestows all good auspicious upon anyone who takes to this worship.

We have naturally encountered the same kind of obstacles that Lord Caitanya and His associates encountered, when transplanting/reviving this rare tree of pure premabhakti worship of Krishna; yet this worship is so powerfully attractive that more and more people are joining this revival in great happiness.