SB 5.18.34-39, Srila Prabhupada’s translations 

Sukadeva Gosvami said: Dear King, the Supreme Lord in His boar incarnation, who accepts all sacrificial offerings, lives in the northern part of Jambudvipa. There, in the tract of land known as Uttarakuru-varsa, mother earth and all the other inhabitants worship Him with unfailing devotional service by repeatedly chanting the following Upanisad mantra.

O Lord, we offer our respectful obeisances unto You as the gigantic person. Simply by chanting mantras, we shall be able to understand You fully. You are yajna [sacrifice], and You are the kratu [ritual]. Therefore all the ritualistic ceremonies of sacrifice are part of Your transcendental body, and You are the only enjoyer of all sacrifices. Your form is composed of transcendental goodness. You are known as tri-yuga because in Kali-yuga You appeared as a concealed incarnation and because You always fully possess the three pairs of opulences.

By manipulating a fire-generating stick, great saints and sages can bring forth the fire lying dormant within wood. In the same way, O Lord, those expert in understanding the Absolute Truth try to see You in everything — even in their own bodies. Yet you remain concealed. You are not to be understood by indirect processes involving mental or physical activities. Because You are self-manifested, only when You see that a person is wholeheartedly engaged in searching for You do You reveal Yourself. Therefore I offer my respectful obeisances unto You.

The objects of material enjoyment [sound, form, taste, touch and smell], the activities of the senses, the controllers of sensory activities [the demigods], the body, eternal time and egotism are all  reations of Your material energy. Those whose intelligence has become fixed by perfect execution of mystic yoga can see that all these elements result from the actions of Your external energy. They can also see Your transcendental form as Supersoul in the background of everything. Therefore I repeatedly offer my respectful obeisances unto You.

O Lord, You do not desire the creation, maintenance or annihilation of this material world, but You perform these activities for the conditioned souls by Your creative energy. Exactly as a piece of iron moves under the influence of a lodestone, inert matter moves when You glance over the total material energy.

My Lord, as the original boar within this universe, You fought and killed the great demon Hiranyaksa. Then You lifted me [the earth] from the Garbhodaka Ocean on the end of Your tusk, exactly as a sporting elephant plucks a lotus flower from the water. I bow down before You.