51 -Mārkandeya wanders in the belly of the Lord 

Brahmā said: 

1. After entering the belly of the boy the sage saw the entire earth consisting of different realms and countries. 

2-4. He saw seven occans¹:-of salt water, sugarcane juice, wine, ghec, curds, milk and fresh water. He saw seven continents-Jambū, Plakşa, Sālmala, Kusaa, Krauñcha, Saka and Puşhkara. He saw Bhārata and other Varşhas (sub-continents). He saw the golden mountain Meru, its peaks shining with gems and jewels. It had many caves, 

1. Seven oceans: Sea of Lavaņa (salt water), of Ikşhu (sugarcano juicc), of Sură (liquor), of Ghurta (clarificd butter), of Dadhi (curd), of Dugdha (milk) and of Fresh Water. Each of these surrounds a particular island, 

5. He saw four castes,² first to last in his belly. He saw deer, monkeys, lions, boars, Srumara variety of deer, rabbits, elephants and other animals. 2. Four Castes: Brāhmaṇa, Kşhatriya, Vaisya, Sūdra. These castes cxist even today, though they are dwindling fast. 

2. Four Castes: Brāhmaṇa, Kşhatriya, Vaisya, Sūdra. These castes exist even today, though they are dwindling fast. 

6-9. Whatever holy centre, village or city there was on the earth, he saw everyone of them therein. He saw agricultural operations, breeding of cows and cattle and business activities of buying and selling. He saw therein Indra, Devas and other heaven-dwellers, Gandharvas, Apsaras, Yakshas, eternal sages, Daityas, Dänavas, Serpents and snakes. O excellent sages. He saw Rahu the son of Simhikā, and other enemies of Devas. O excellent brahmins, in his belly he saw those mobile and immobile beings which had been formerly seen by him on the face of the earth. - 

10-12. Or of what avail is much talk or the same thing repeated over and over again? He saw the entire mobile and immobile beings beginning with Brahma and ending with a blade of grass. He saw the Bhurloka, Bhuvarloka, Svarloka, Mahar, Jana, Tapas, Satya, Atala, Vitala, Pātāla, Bhūtala, Vitala, Rasätala and Mahátala. In fact, he saw the entire cosmic egg in his belly. 

13-16. O excellent brahmins, by the favour of that lord his movement was unimpeded. His memory was unimpaired. O brahmins, wandering thus over the entire universe in his belly he could never reach the end of the body of Vişhnu. 

O brahmins, when he could not reach the end of his body, the sage sought refuge in the lord the bestower of boons. 

Then, o brahmins, he suddenly came out of the open mouth of the noble-souled Puruşa with the speed of the wind. 

Extra eight verses according to another reading occur between the 4th and 5th verses of Chapter 51 

He saw the Meru mountain inhabited by sages and abounding in trees. It was full of animals and mysterious and wonderful objects. It was beautified by tigers, lions, boars, Camara, deer, buffalocs, elephants, monkeys and other animals. It was peopled by Lord Indra and other Devas, Siddhas, Caranas, Nāgas, and those others who lived in the abode of Devas.

Brahmā said: 

Thus the excellent sage, the brahmin, who wondered about in the belly of that boy, saw the glorious Sumeru, Himavan, Hemakūta, Nişadha, Gandhamadana, Sveta, Durdhara, Nila, Kailasa, Malaya, Vindhya, Pariyatra, Arbuda, Sahya, Suktimān, Maināka, and the mountain Rakşha. He saw these and other mountains that were there. O excellent sage, he saw them bedecked in gems and jewels. He saw Kuruksetra, Pañchala, Matsya, Madras, Kekayas, Bāhlikas, Sūrasenas, Käśmīras, Tangañas, Khasas, Kiråtas, Karnapravaranas and Marus.