7. The central pillar connecting the two halves of time is the axis of the earth, around which earth is spinning and making light and darkness change places every 24 hours. June 24 and December 24 are appropriate dates for the location of the central pillar.

So when our side of the earth is light, i.e. the sun is looking at us, he cannot observe the other side, it is in the dark. Exactly as if we were looking at the stone 'globe' which has been rolled out on a flat surface by Heyerdahl:

Our eyes are like the sun:

"The eye is the symbolic site of subjection. Valeri observes that: 'The two sentiments that permit the transcendence of the self are, according to Hawaiians, desire and respect. One and the other are called kau ka maka, literally, 'to set one's eyes on' ... 

'To see' (ike) in Hawaiian (as in French or English) is 'to understand', but it is also 'to know sexually'.

Witness to the order, the world of forms generated by the chief, the eye, is the sacrifice of those who violate that order. The left eye of the slain tabu-transgressors is swallowed by Kahoali'i, ceremonial double of the king and living god of his sacrificial rites.

Like the sun, chiefs of the highest tabus - those who are called 'gods', 'fire', 'heat', and 'raging blazes' - cannot be gazed directly upon without injury. The lowly commoner prostrates before them face to the ground, the position assumed by victims on the platforms of human sacrifice. Such a one is called makawela, 'burnt eyes'." (Islands of History)