The Essential Qualifications
The Hari-bhakti-vilāsa establishes the essential qualifications of a spiritual master based on Śrīmad-Bhāgavatam 11.3.21 and 11.10.5:
tasmād guruṁ prapadyeta jijñāsuḥ śreya uttamam
śābde pare ca niṣṇātaṁ brahmaṇy upaśamāśrayam
“Therefore, one who is desirous of the ultimate good should turn to a guru who is immersed in scripture and in the Supreme Brahman, and sheltered in the highest peace.”
mad-abhijñaṃ guruṃ śāntam upāsīta mad-ātmakam
“One should turn to a guru wh