6.42 If one swerves from the right path at an advanced stage of Yoga, he will be born in a family of wise Yogins who practise Yoga and are themselves capable of teaching Yoga. Thus, these two types of birth - one in the family of those who are fit to practise Yoga and the other in that of accomplished Yogins - are hardly met with among common people in this world. But Yoga is of such great potentiality that even this rare blessing is achieved through it.