In the year calendar of Keiti we can contrast these two periods with each other. Consequently, a season can be illustrated as a GD15 person:

5				In Eb3-1 the man with a 'barren' hand illustrates winter, which will give way for the summer half of the year. Eb3-4 describes the turning around of the sun canoe - i.e. at the beginning of period 5 winter still rules.
	Eb3-1	Eb3-2	Eb3-3
	Eb3-4	Eb3-5	Eb3-6

18				In Eb5-4 the man illustrates summer, which will give way for the winter half of the year. Eb5-7 describes the turning around of the sun canoe - i.e. at the beginning of period 18 summer still rules.
	Eb5-4	Eb5-5	Eb5-6
	Eb5-7	Eb5-8	Eb5-9