Ga5-5 informs us that a 'square' ('earth') is completed, and that the square in question is related to 'fire' (5). Presumably focus will now be shifting to another 'habit' of the sun. Tagata with high neck is at left in Ga5-7 and we could then suppose vai at right lies in the future. However, the distribution of vai glyphs in G suggests that also vai belongs in the past:


Gb2-27 (283)	Gb3-5	Gb3-25	Gb4-2	Gb4-23	Gb8-11 (453)	Ga5-7
*171 = 9 19**						Ga5-7

Vai is beginning at Hua Reva (the first kuhane station without Te). Sun is at Hua Reva changing from his 'red summer coat' to a 'raincoat'. But at Ga5-7 the 'raincoat' has been put aside. The glyph is presumably saying Manavai (the name of one of the kuhane stations):

Manavai

Hollow where rainwater accumulates; anciently, small, round gardens, preferably situated in low shady spots, where the mahute tree was grown. Vanaga.

1. Brain. 2. Valley, ravine, river, torrent, brook; manavai miro, orchard, Mq.: manavai, valley, brook. Ta.: anavai, river, brook. It scarcely appears that these are fully coordinate. In Tahiti anavai has a clear etymology, ana meaning the bed of a stream. In Rapanui and in the Marquesas mana most readily associates with maga, as water in a forked bed. Churchill.

The vai season (when sun is far north) appears to be ending at Gb8-11, because the empty uplifted hand evidently says so. Therefore the vai sign in Ga5-7 should be referring to a name rather than directly to the vai season.