Bhagavad Gita 10.10तेषां सततयुक्तानां भजतां प्रीतिपूर्वकम्।ददामि बुद्धियोगं तं येन मामुपयान्ति ते ॥

The devotees who have dedicated themselves to the Lord, who are ever harmonious and selfabiding, who are ever devout and who adore Him with intense love (not for attaining any selfish purpose), obtain the divine grace. The Lord gives them wisdom or the Yoga of discrimination or understanding by which they attain the knowledge of the Self. The Lord bestows on these devotees who have fixed their thoughts on Him alone, devotion of right knowledge. (Buddhi Yoga) by which they know Him in essence. They know through the eye of intuition in deep meditaion the Supreme Lord, the One in all, the Self of all, as their own Self, destitue of all limitations. Buddhi here is the inner eye of intuition by which the magnificent experience of oneness is had. Buddhi Yoga is Jnana Yoga. (Cf.IV.39XII.6and7)Why does the Lord impart this Yoga of knowledge to His devotees What obstacles does the Buddhi Yoga remove on the path of the aspirant or devotee The Lord gives the answer in the following verse.