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“…If one thinks that there are many pseudo devotees or nondevotees in the Kṛṣṇa Consciousness Society, one can keep direct company with the spiritual master, and if there is any doubt, one should consult the spiritual master. However, unless one follows the spiritual master’s instructions and the regulative principles governing chanting and hearing the holy name of the Lord, one cannot become a pure devotee. By one’s mental concoctions, one falls down… (CC Madhya 19.157 purport)
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The Hare Krishna Movement 