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## Third Chapter: The Statement of the Salt Crest
**157.** "O Bhagavan! How many times does the salt ocean rise and fall in thirty muhurtas (a day and night)?"
"O Gautama! The salt ocean rises and falls twice in thirty muhurtas (a day and night)."
"O Bhagavan! Why is it said that the salt ocean rises and falls twice in thirty muhurtas?"
"O Gautama! When the air is agitated, the water rises from the lower and middle compartments of the Patala Kalasas (underground reservoirs) and the ocean rises. When the air is still, the Patala Kalasas are filled with water and the ocean falls. Therefore, O Gautama! It is said that the salt ocean rises and falls twice in thirty muhurtas."
**158.** "O Bhagavan! How wide is the salt crest in relation to the circumference of the Chakravala (the universe) and how much does it rise and fall?"
"O Gautama! The salt crest rises and falls by half a yojana (a measure of distance) in relation to the circumference of the Chakravala, which is ten thousand yojanas."
"O Bhagavan! How many Gagasahasras (a measure of depth) does the salt ocean hold in its inner circumference? How many Nagasahasras does it hold in its outer circumference? How many Nagasahasras does it hold in its sunrise circumference?"
"O Gautama! The salt ocean holds forty-two Gagasahasras in its inner circumference, forty-two Gagasahasras in its outer circumference, and sixty Nagasahasras in its sunrise circumference. Thus, with its coverings, it is one Nagasahasra and one Gagasahasra."