Sri Sukadeva Goswami said, O King Pariksit, by the request of Vasudeva, the greatly austere Dynasty Priest of the Yadavas, Garga Muni, reached the village of Nanda Maharaja.

In ancient Vedic tradition, every spiritual function remains incomplete without the purificatory ceremony conducted by an authorized priest.  There are two categories of priests - the Spiritual Master and the family priest.  Both kinds of priests can perform the purificatory ceremonies, but to do so they must be born into a traditional ancient Brahmana Dynasty.  Those who desire to follow the exact Vedic rules must abide by this law.  When one finds a priest who is from the true Brahmana tradition and is the most qualified person, one must humbly approach him for purificatory functions.  In Vedic civilization, the spiritual obligation of a human being is the most important aspect of life, and if anyone discourages others from following the exact Vedic tradition, he should be rejected, even if he is a close relative.

Although Krsna is the source of all creation, who created everything and remains untouched by matter, He is now allowing His devotees to care for Him. He is beyond this creation, as is explained in the Svetasvatara Upanisad thus:

SA VISVAKAT VISVA VIDATMA YONIH
(Svetsçvatara Upaniñad 6.16)

"He is such a transcendental Personality that, although He created everything in this universe and all the universes have come from Him, still, no matter can ever affect Him."

This is confirmed in the Mahanarayana Sruti thus, visvatas caksuh, "He is transcendental; therefore He sees everything and everyone of this world."  Although the Lord is transcendentally situated, He still wants His devotees to serve Him in a loving, devotional manner.  Therefore, Yogamaya creates an intuition in both Nanda Maharaja in Gokul and Vasudeva in Mathura to have the name-giving ceremony for Krsna and Balaram.  Vasudeva acts first by secretly calling Garga Muni, his dynasty priest, commissioning him to Gokul to perform this function.  Srila Jiva Goswami quotes Vasudeva in the Gopala Campu thus, "O Acarya, please go swiftly to Vraja to the home of Nanda Maharaja, where there are two newly born sons.  Please perform their name-giving ceremony to the standard of twice-borns.  But try to make sure that their thread-giving and marriage ceremonies are not held in Gokul."  Hearing this, Garga Muni said, "O Vasudeva, you have made the proper requests, since we have to support our standards." Garga Muni knows that Krsna and Balaram are Vasudeva's sons and Vasudeva is a Ksatriya by birth, so standards of Ksatriya have to be maintained. If one's dynasty standards are not maintained, one is considered to be an outcast and is called untouchable.

Just see how dramatic the Lord is, who creates this manifestation by His will!  A name-giving ceremony is being arranged for Him because He planted the idea in Vasudeva's mind!  The Person who is inside and outside of everything is now limiting Himself to the lap of the Vrajavasis and acting like a small human child.  What could be more wondrous than this?