Intellectuals tend to be arrogant. Intelligence, like money, is a good servant but a bad master. When practicing pranayama, the yogi [makes] himself humble and without pride in his intellectual attainments.
B.K.S. IyengarThe sleeping tortoise takes all its limbs into its carapace. So does the yogi: going back into himself he does not see anything worldly any longer, he makes peace in himself.
B.K.S. Iyengar