The maitaki (beautiful) glyph seems to refer to the high sky ruling the first half of the year.

The glyph is divided by a straight vertical time line, with at left the past and at right the future.

Often the future is different from the past, and then the differences are illustrated by the sizes and forms of the 'balls'. An extreme example is Aa6-68 which describes the end of spring time and the onset of the season of rain and low clouds:

Aa6-64	Aa6-65	Aa6-66	Aa6-67	Aa6-68

At the new year break in time the distance between the old and new years is illustrated by henua instead of a vertical string, as e.g. in Eb6-1:

Eb5-35	Eb6-1	Eb6-2

The 'thunder twins' in G.