The constellation Orion is basically a 'square' formed by the 'corner stones' Betelguese, Bellatrix, Rigel, and Saiph. The 3 stars which form the Belt of Orion are in the center of this 'square'. In Mayan thought there should be a fire in the center of such a field.

3 stones is the minimum number for arranging a fire with a pot on top for cooking. For once fire will then be below water. This miracle was an immense step ahead for mankind. By cooking the intake of food enabled also the oldest members of society to take part, although their teeth were missing.

Saturn is the old god at the center of the square earth. He tends the hearth. The Chinese has his colour as yellow which has been explained as due to the colour of the earth in China:

Elements:

wood

fire

earth

metal

water

Cardinal points:

east

south

middle

west

north

Planets:

Jupiter

Mars

Saturn

Venus

Mercury

Sense organ:

eye

tongue

mouth

nose

ear

Taste:

sour

bitter

sweet

rank

salty

Crop:

wheat

beans

hirs (Panicum)

hemp

hirs (Setaria)

Animal:

sheep

hen

ox

dog

pig

Colour:

bluegreen

red

yellow

white

black

I suggest a better explanation is that yellow is the colour of fire.

South of the equator Saturn is also connected with water ('dripping water') and with the mouth:

... On Hawaii both Saturn and Venus were named Naholoholo, and horo means to wash down, to swallow etc. In Sweden we have an old name for December 24, 'dopparedagen' which means the day of dipping. There are two days connected with entering (or being swallowed by) water, viz. June 24 and December 24 ...

Therefore Saturn is connected with cooking.

The Square of Pegasus has no fire in its center. It lies 3 quarters away from the fire in the square of Orion. Pisces are below the Square of Pegasus. These Fishes indicate that the Square of Pegasus has the sea below. But nowadays the Square of Pegasus is at spring equinox (north of the equator), no longer in winter (where the celestial sea is).

Therefore the arrival of the new fire - which surely must be connected with spring equinox in mythology - must mean that the Square of Pegasus is no field of earth but possibly a square type of vessel, a raft. A deluge explains why there is water everywhere instead of earth.

It is a dark time with fire absent - cooking cannot be done and people are starving. But soon land will rise again, and the inundation of Earth will be over. The raft will come ashore.

In the rongorongo texts the change from 'land' to 'sea' is the reverse of what happens at the same time of the year north of the equator. At midsummer Sun will go down into the water, but north of the equator he will return, be reborn.

The spring henua sign refers to the time when the celestial 'fire' (Sun) is shining on the fields, but at 'midnight' another type of henua is used, probably to indicate the absence of 'fire':

The spring type of henua can be read as either a vertical pillar raising the sky roof high or as a rectangular field on earth bathing in the rays from spring Sun. The 'midnight henua' can be read as either the same sort of pillars in a horizontal position (because the sky roof is low) or as the rectangular outline of a raft constructed from them.