Vibhuti Vistara Yoga-Bhagavad Gita Chapter 10 [The Infinite Glories of the Ultimate Truth]
Krishna Said > Shaloka: 19
English
Yes, I will tell you of My splendorous manifestations, but only of those which are prominent, O Arjuna, for My opulence is limitless.
Purport
It is not possible to comprehend the greatness of Krishna and His opulences. The senses of the individual soul are imperfect and do not permit him to understand the totality of Krishna’s affairs. Still the devotees try to understand Krishna, but not on the principle that they will be able to understand Krishna fully at any specific time or in any state of life. Rather, the very topics of Krishna are so relishable that they appear to them as nectar. Thus they enjoy them. In discussing Krishna’s opulences and His diverse energies, the pure devotees take transcendental pleasure. Therefore they want to hear and discuss them. Krishna knows that living entities do not understand the extent of His opulences; He therefore agrees to state only the principal manifestations of His different energies. The word pradhanyatah (principal) is very important because we can understand only a few of the principal details of the Supreme Lord, for His features are unlimited. It is not possible to understand them all. And vibhuti, as used in this verse, refers to the opulences by which He controls the whole manifestation. In the Amara-kosa dictionary it is stated that vibhuti indicates an exceptional opulence.
The impersonalist or the pantheist cannot understand the exceptional opulences of the Supreme Lord nor the manifestations of His divine energy. Both in the material world and in the spiritual world His energies are distributed in every variety of manifestation. Now Krishna is describing what can be directly perceived by the common man; thus part of His variegated energy is described in this way.