Egyptian water ripples

Field	Abyss
earth below water	water below earth

The opposite of an inundated field of earth must be water down below the surface of the earth. In other words, when the Pegasus Square was present it should have been a sign of 'high tide' with Land at a minimum. Half a year later it was the opposite, a minimum of water and a maximum of 'maro'.

... To the early Aryans the desert, the maru, which approached their abodes on the west, must have presented itself primarily under the aspect of 'dry, arid, sterile, barren', a sense still retained in the Polynesian maro ...

When Maui was striving to draw up Land his maro came loose as a sign that the fight was not yet over:

... But then the fish plunged down again, all the way to the bottom. And Maui had to strain, and haul away again. And at the height of all this excitement his belt worked loose, and his maro fell off and he had to kick it from his feet. He had to do the rest with nothing on ...

He had to be like a newborn baby - no clothes at all - in order to be in harmony with his wish to draw up a newborn Land, not yet dry but moist, otherwise he surely would not succeed. Hevelius has drawn the Gemini Twins completely naked - they had just climbed up from the Milky Way River.

The widespread Polynesian stories of mythical figures drawing up Land could have originated from thinking about the position of the Pegasus Square. If Land should begin in e.g. May and if the first part of the Pegasus Square was approaching the March equinox then some myth should be told about how the 'deluge' was overcome, how the Field was drawn up.

Another myth was used to make sure it was known where the position of Dry Land had its maximum. This was at the other side of the Sky, close to the September equinox, where Raven had to go thirsty:

... the bird, being sent with a cup for water, loitered at a fig-tree till the fruit became ripe, and then returned to the god with a water-snake in his claws and a lie in his mouth, alleging the snake to have been the cause of the delay. In punishment he was forever fixed in the sky with the Cup and the Snake; and, we may infer, doomed to everlasting thirst by the guardianship of the Hydra over the Cup and its contents. From all this came other poetical names for our Corvus - Avis Ficarius, the Fig Bird; and Emansor, one who stays beyond his time; and a belief, in early folk-lore, that this alone among birds did not carry water to its young ...

Could the Babylonian Abyss be the deep bend of Hydra in front of Corvus? I guess we instead should contemplate the possibility that the small quadrangular Corvus constellation was a 'reflection' of the great quadrangle in Pegasus. The constellation was evidently easy to recognize in the sky of the southern hemisphere, here above Leo and in front of the Scorpion: