In last Shloka(of Chapter 6) Bhagvan Shri Krishna while describing the best among human beings, declared a yogi to be better than all others, but then a true devotee who is completely devoted to God is better than even yogi. And so a Bhakt(devotee) is best.

The coming Shlokas in this Chapter will describe the true nature and potency of Bhagvan Shri Krishna, the God. Therefore Shri Krishna asks Arjuna to bring his focus entirely on whatever been said if he is interested in knowing who and what is God?

Giving commentary on this Chapter, Shri Ramanuja, the author of Vishist Advaita commented as follows:
“Listen attentively to this teaching which I am about to impart to you, by which you will understand Me conclusively and completely. I am the object of the Yogic contemplation in which you are engaged with a mind so deeply attached to Me by virtue of your overwhelming love. It would probably disintegrate instantaneously the moment it lost contact with My essential Being, attributes, pastimes, and glories, and with your very Self resting so completely on Me — it would break up when bereft of Me.”