durlabho viṣaya-tyāgo durlabhaṁ tattva-darśanaṁ
durlabho viṣaya-tyāgo durlabhaṁ tattva-darśanaṁ |
durlabhā sahajāvasthā sad-guroḥ karuṇāṁ vinā ||
(Mahopaniṣad: 3.77; Haṭha-yoga-pradīpikā: 4.7)
“Rare is relinquishment of objects of the senses, rare is perception of truth, and rare is a natural condition without the grace of a genuine guru.”