Arjun inquired: Between those who are steadfastly devoted to Your personal form and those who worship the formless Brahman, whom do You consider to be more perfect in Yog? The Lord said: Those who fix their minds on Me and always engage in My devotion with steadfast faith, I consider them to be the best yogis. But those who worship the formless aspect of the Absolute Truth—the imperishable, the indefinable, the unmanifest, the all-pervading, the unthinkable, the unchanging, the eternal, and the immoveable—by restraining their senses and being even-minded everywhere, such persons, engaged in the welfare of all beings, also attain Me. For those whose minds are attached to the unmanifest, the path of realization is full of tribulations. Worship of the unmanifest is exceedingly difficult for embodied beings. But those who dedicate all their actions to Me, regarding Me as the Supreme goal, worshiping Me and meditating on Me with exclusive devotion, O Parth, I swiftly deliver them from the ocean of birth and death, for their consciousness is united with Me.
- Bhagavad Gita, Chapter 12 (The Yog of Devotion), Verses 1-7