Guru—spiritual master; one of the three authorities for a Vaiṣṇava. Literally, this term means heavy. The spiritual master is called guru because he is heavy with knowledge. See Sādhu, Śāstra.

Guru-spiritual master; one of the three authorities for a Vaisnava. Literally, this term means heavy. The spiritual master is called guru because he is heavy with knowledge. See Sadhu, Sastra.
 

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