When we stay in a secluded place, we should not think, “Oh, it is hard for me!” How difficult it is for a blind person to obtain a wish-fulfilling jewel! If this blind person lost this jewel, who knows when he could get such a jewel again! Just like this metaphor, we were unable to obtain a human body, which is endowed with freedoms and advantages. And now we have obtained such a human body for this time, if we lost the opportunity of using this body for dharma practice, if we lost this very chance, it would be very difficult for us to obtain it again and again.

-- Yangthang Rinpoche