The vast manifestation of the phenomenal material world as a whole is the mask-body (persona) of the formless Pure Energy, Transcendent Reality of Spirit, wherein the universal resultant past, present and future of material time is experienced.
Persons who have realized it have studied that the planets known as Pātāla constitute the bottoms of the feet of the universal Lord, and the heels and the toes are the Rasātala planets. The ankles are the Mahātala planets, and His shanks constitute the Talātala planets.
The knees of the universal form are the planetary system of the name Sutala, and the two thighs are the Vitala and Atala planetary systems. The hips are Mahītala, and outer space is the depression of His navel.
The chest of the Original Personality of the gigantic form is the luminary planetary system, His neck is the Mahar planets, His mouth is the Janas planets, and His forehead is the Tapas planetary system. The topmost planetary system, known as Satyaloka, is the head of He who has one thousand heads.
His arms are the demigods headed by Indra, the ten directional sides are His ears, and physical sound is His sense of hearing. His nostrils are the two Aśvinī-kumāras, and material fragrance is His sense of smell. His mouth is the blazing fire.
The sphere of outer space constitutes His eyepits, and the eyeball is the sun as the power of seeing. His eyelids are both the day and night, and in the movements of His eyebrows, the Brahmā and similar supreme personalities reside. His palate is the director of water, Varuṇa, and the essence of taste of everything is His tongue.
The Vedic hymns are the cerebral passage of the Lord, and His jaws of teeth are Yama, god of death, who punishes the sinners. The art of affection is His set of teeth, and the most alluring illusory material energy is His smile. This great ocean of material creation is but the casting of His glance over us.
Modesty is the upper portion of His lips, hankering is His chin, religion is the breast of the Lord, and irreligion is His back. Brahmājī and the Mitra-varunas, who generate all living beings in the material world, are His genitals. The ocean is His waist, and the hills and mountains are the stacks of His bones.
The rivers are the veins of the gigantic body, the trees are the hairs of His body, and the omnipotent air is His breath. The passing ages are His movements, and His activities are the reactions of the three modes of material nature.
The clouds which carry water are the hairs on His head, the terminations of days or nights are His dress, and the supreme cause of material creation is His intelligence. His mind is the moon, the reservoir of all changes. The principle of matter is the consciousness of the omnipresent Lord, and Rudradeva is His ego.
Varieties of birds are indications of His masterful artistic sense. Manu, the father of mankind, is the emblem of His standard intelligence, and humanity is His residence. The celestial species of human beings, like the Gandharvas, Vidyādharas, Cāraṇas and angels, all represent His musical rhythm, and the demoniac soldiers are representations of His wonderful prowess.
I have thus explained to you the gross material gigantic conception of the Personality of Godhead. One who seriously desires liberation concentrates his mind on this form of the Lord, because there is nothing more than this in the material world.
One should concentrate his mind upon the Supreme Personality of Godhead, who alone distributes Himself in so many manifestations just as ordinary persons create thousands of manifestations in dreams. One must concentrate the mind on Him, the only all-blissful Absolute Truth.
-- Srimad Bhagavatam, Canto 2 Chapter 1, "First Steps in God Realization"
