बुद्धियोग

Buddhi yoga means understanding held steady in one direction: discernment that does not scatter. The Gita uses the word in two large senses. In chapter 2 one resolute understanding is set against the many-branched, scattered ones (Gita 2.39, Gita 2.41). There it holds action together.

In chapter 10 the Lord says that to those who are constantly steadfast and worship Him with love, He gives the buddhi yoga by which they come to Him (Gita 10.10). Here the same single-pointed understanding carries the devotee to the Lord, and the giver is the Lord. The form of the gift is the lamp of knowledge, which He lights from within the heart (Gita 10.11).

Common misreading: that buddhi yoga is a separate technique of meditation.

Better sense: steady, single-pointed understanding that holds action together and carries the devotee to the Lord.

The whole passage is in Knowing His Glory Leads to Devotion, and chapter 2's use is in Buddhi Yoga.