How many gurus should a person have?
This depends on your sampradaya, the school or lineage tradition. Some demand devotion to a single guru who acts as both your initiator and your sole teacher. Others take a wider approach, encouraging learning from all avenues, and from many gurus. We believe that one should always be in a place of learning, and thus you should learn from many teachers, and receive blessings where they are given. There are diksha gurus (gurus that give you initiation) and shiksha gurus (gurus that give you instruction, but not necessarily initiation). One should make sure that their shiksha gurus are reputable and qualified, but should choose diksha gurus especially carefully. Initiation is a serious matter and one should understand all of the responsibilities and expectations before accepting or pursuing initiation with any guru or lineage.
