तानि सर्वाणि संयम्य युक्त आसीत मत्परः ।वशे हि यस्येन्द्रियाणि तस्य प्रज्ञा प्रतिष्ठिता ॥
tāni sarvāṇi saṃyamya yukta āsīta matparaḥvaśe hi yasyendriyāṇi tasya prajñā pratiṣṭhitā
Having brought all the senses under control, he must sit firm in Yoga, wholly given up to Me; for whose senses are mastered, of him the intelligence is firmly established (in its proper seat).
Gītā 2·61This cannot be done perfectly by the act of the intelligence itself, by a merely mental self-discipline; it can only be done by Yoga with something which is higher than itself and in which calm and self-mastery are inherent. And this Yoga can only arrive at its success by devoting, by consecrating, by giving up the whole self to the Divine, “to Me”, says Krishna; for the Liberator is within us, but it is not our mind, nor our intelligence, nor our personal will,—they are only instruments. It is the Lord in whom, as we are told in the end, we have utterly to take refuge. And for that we must at first make him the object of our whole being and keep in soul-contact with him.