kecanaitaj jyotir-anikam sisumara-samsthanena bhagavato vasudevasya yoga-dharanayam anuvarnayanti.
kecana—some yogis or learned scholars of astronomy; etat—this; jyotih-anikam—great wheel of planets and stars; sisumara-samsthanena—imagine this wheel to be a sisumara (dolphin); bhagavatah—of the Supreme Personality of Godhead; vasudevasya—Lord Vasudeva (the son of Vasudeva), Krsna; yoga-dharanayam—in absorption in worship; anuvarnayanti—describe.
This great machine, consisting of the stars and planets, resembles the form of a sisumara [dolphin] in the water. It is sometimes considered an incarnation of Krsna, Vasudeva. Great yogis meditate upon Vasudeva in this form because it is actually visible.
Transcendentalists such as yogis whose minds cannot accommodate the form of the Lord prefer to visualize something very great, such as the virat-purusa. Therefore some yogis contemplate this imaginary sisumara to be swimming in the sky the way a dolphin swims in water. They meditate upon it as the virat-rupa, the gigantic form of the Supreme Personality of Godhead.

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