Summary:

Winter solstice is what the standard (without additional signs) mauga glyph type indicates.

The word mauga means 'last' and the mauga season is the very last phase of the old year.

It is the time when the old year 'dies', the old 'fire' is extinguished and a new one must be alighted.

The mauga glyph type refers to the time after the old fire has been quenched and the new one not yet has arrived.

A mauga glyph with incompletely drawn perimeter means eíther a forewarning of the darkest time to arrive later or a lingering memory of the darkest time now past. Which of these two alternative meanings is correct depends on additional signs and surrounding glyphs.

An attempt to use the knowledge gained in order to define the meanings of three mauga glyphs in a calendar on the Keiti Tablet.