oḿ pūrṇam adaḥ pūrṇam idaḿ pūrṇāt pūrṇam udacyate
pūrṇasya pūrṇam ādāya pūrṇam evāvaśiṣyate
The Personality of Godhead is perfect and complete, and because He is completely perfect, all emanations from Him, such as this phenomenal world, are perfectly equipped as complete wholes. Whatever is produced of the Complete Whole is also complete in itself. Because He is the Complete Whole, even though so many complete units emanate from Him, He remains the complete balance.
The glories of the Lord are unfathomable and often incomprehensible for the materially contaminated intelligence of the conditioned living entities. One such amazing quality of the Lord is beautifully explained in this invocation verse of Sri Ishopanishad, in which the completeness of the Lord and all his emanations has been explained. Being the transcendental cause of all causes, the source of all that exists, and the complete whole, everything emanates from him and all such emanations, such as the cosmic manifestation, the transcendental realm, and all else, are all complete in themselves, and yet, despite innumerable complete wholes emanating from the Lord, his completeness is not at all compromised. We can personally perceive this as well. The material world, which is just a temporary manifestation of the inferior energy of the Lord, is functioning with complete precision. Along with the earthly planet that we can perceive, the other planets in this universe, as well as the innumerable universes that manifest from the pores of Maha-Vishnu, are all complete and functioning perfectly. What to speak then of the superior energy of the Lord, which too is perfect in itself. Along with this, the Lord personally enters all the universes in the form of Paramatma and permeates each and every atom in the entire creation. Yet, the Supreme Lord Shyamsundar, who is eternally performing sweet pastimes in Golok Vrindavan in the association of his eternal associates, is complete in himself and so are all of his incarnations and expansions such as Lord Ram, Narasimha dev, and the various Vishnu murtis. Such is the inconceivable completeness of the Supreme Lord.