“In conditional life, the living entity moves turbulently in the whirlpool of birth and death, but when one is situated on the transcendental platform of visuddha-sattva, pure goodness, he can see the Supreme Personality of Godhead, who sits on the back of Garuda.”
This is from the Srimad-Bhagavatam 8.5.29
[This chapter of the Srimad-Bhagavatam is entitled “The Demigods Appeal to the Lord for Protection.” Included here is a genealogy of Manus—administrators of the universe—along with a narration of prayers by the demigods to the Supreme Person.]
The Supreme Personality of Godhead is situated in pure goodness [suddha-sattva], and therefore He is eka-varna — the omkara [pranava]. Because the Lord is beyond the cosmic manifestation, which is considered to be darkness, He is not visible to material eyes. Nonetheless, He is not separated from us by time or space, but is present everywhere. Seated on His carrier, Garuda, He is worshiped by means of mystical yogic power by those who have achieved freedom from agitation. Let us all offer our respectful obeisances unto Him.
Because the Lord is situated beyond the three modes of material nature, He is unseen by those who are dominated by these three modes. One must therefore become dhira, or undisturbed by the modes of material nature.
The process of yoga may be practiced by one who is free from the agitation of these modes. Therefore yoga is defined in this way: yoga indriya-samyamah. As previously explained, we are disturbed by the indriyas, or senses. Moreover, we are agitated by the three modes of material nature, which are imposed upon us by the external energy.
In conditional life, the living entity moves turbulently in the whirlpool of birth and death, but when one is situated on the transcendental platform of visuddha-sattva, pure goodness, he can see the Supreme Personality of Godhead, who sits on the back of Garuda. Lord Brahma offers his respectful obeisances unto that Supreme Lord.