Srimad Bhagavatam Canto 11, Chapter 05, Text 29-30


SB 11.5.29-30

namas te vasudevaya
 namah sankarsanaya ca
 tubhyam bhagavate namah
narayanaya rsaye
 purusaya mahatmane
visvesvaraya visvaya
 sarva-bhutatmane namah
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
“Obeisances to You, O Supreme Lord Vasudeva, and to Your forms of Sankarsana, Pradyumna and Aniruddha. O Supreme Personality of Godhead, all obeisances unto You. O Lord Narayana Rsi, O creator of the universe, best of personalities, master of this cosmos and original form of the universe, O Supersoul of all created entities, all homage unto You.”
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
Srila Jiva Gosvami explains that although Lord Krsna appeared at the end of Dvapara-yuga, great sages chanted this verse from the beginning of that age in expectation of His appearance.
Ordinary living entities, although eternally subordinate to the Lord, become absorbed in attempting to dominate the material creation yet ultimately remain under the control of the Supreme Lord. The constitutional position of the living entity is engagement in the Lord’s service. It is further the constitutional position of the material nature to be engaged by the living entity in satisfying the transcendental desires of the Lord. Thus these prayers, as mentioned in this verse, are offered to the Supreme Lord in accordance with the Pañcaratra and the Vedic mantras so that one may become fixed in remembering his eternal subordination to the Absolute Truth.
The supreme living entity, Krsna, eternally manifests Himself as the catur-vyuha, or quadruple plenary expansion. The purport of this prayer is that one should give up his false ego and pray to this catur-vyuha by offering Them obeisances. Although the Absolute Truth is one without a second, the Absolute Truth displays His unlimited opulences and potencies by expanding Himself in innumerable plenary forms, of which the catur-vyuha is a principal expansion. The original being is Vasudeva, the Personality of Godhead. When the Godhead manifests His primeval energies and opulences, He is called Sankarsana. Pradyumna is the basis of the Visnu expansion who is the soul of the entire universe, and Aniruddha is the basis of the personal manifestation of Visnu as the Supersoul of every individual entity within the universe. Among the four plenary expansions mentioned here, the original expansion is Vasudeva, and the other three are considered to be particular manifestations of Him.
When the living entity forgets that both he himself as well as the material nature are meant for the Lord’s service, the quality of ignorance becomes prominent, and the conditioned entity desires to become himself the master. Thus the conditioned soul imagines that he is a very important person within society or that he is a great philosopher. The Vedic mantras and Pañcaratra give mankind instructions about devotional service to the Personality of Godhead, which free one from the contamination of considering oneself a prestigious member of society or a great philosopher. One in knowledge should recognize himself as a tiny servant of the Supreme Absolute Truth.
In Dvapara-yuga, Deity worship of the Lord is prominent. Such Deity worship is ultimately aimed at the process of sravanam kirtanam visnoh. Without hearing and chanting the glories of the Lord one cannot perform Deity worship. In Deity worship it is required that the worshiper glorify the names, forms, qualities, paraphernalia, entourage and pastimes of the Supreme Lord. When such glorification is complete, the worshiper becomes eligible to realize transcendental knowledge through hearing about the Lord.
Srimad Bhagavatam Canto 11, Chapter 05, Text 28
Srimad Bhagavatam Canto 11, Chapter 05, Text 31