Bhagavad Gita As It Is

References to text BG 4.3
BG 4.3: That very ancient science of the relationship with the Supreme is today told by Me to you because you are My devotee as well as My friend and can therefore understand the transcendental mystery of this science.

Text â„–
Now, therefore, I will try to explain the process of devotional service.
Narada Bhakti Sutra
NBS 1