The meaning of a glyph depends on the surrounding glyphs:

Aa6-8 Aa6-9 Aa6-10 Aa6-11 Aa6-12 Aa6-13 Aa6-14 (472)
Aa6-15 Aa6-16 Aa6-17 Aa6-18 Aa6-19 Aa6-20 Aa6-21

In Aa6-11 a kind of hua (representing next 'generation' - i.e. next phase in the time cycle) emerges from the uplifted hand. It has 3 + 3 = 6 'feathers'. At bottom is a connected (but separate) 'ball' with what looks like a horizontal line behind. It may signify the sun (the ball) and how at a solstice the path is flat, nothing changes over the days.

The strange Aa6-14 apparently is meant to show next stage in the development, hua has grown and the little 'ball' at bottom is now integrated, it is no longer a separate entity. The 'head' of the sun continues in the next generation. To quote Popol Vuh:

... And when his head was put in the fork of the tree, the tree bore fruit. It would not have had any fruit, had not the head of One Hunaphu been put in the fork of the tree. This is the calabash, as we call it today, or 'the skull of One Hunaphu', as it is said. And then One and Seven Death were amazed at the fruit of the tree. The fruit grows out everywhere, and it isn't clear where the head of One Hunaphu is; now it looks just the way the calabashes look. All the Xibalbans see this, when they come to look ...

In Aa6-12 a pau sign probably indicates how the light of the first half of the cycle has come to an end. The complex Aa6-15 has henua ora in its center, the sign of a 'recycling station'. Then follows a cock crying out (moa in Aa6-16) - a new light is about to appear.

6 * 14 (in Aa6-14) = 84 and 472 = 16 * 29.5, numbers which indicate ends of time cycles.