A solution to this problem must - I think - observe that we have the same problem with GD24,  two main variants: 'eyes' with two rims and 'eyes' with one rim.

To start with: Why two 'eyes' (regardless if there are two rims or one rim)? "... down went Alice after it, never once considering how in the world she was to get out again..." Obviously there must be another hole to get up through. Rabbits have lots of holes.

And where is this other hole? Answer: that depends on which henua you visit. If we earlier thought about the sun going down through one hole in the evening and up through another hole in the morning, then we should use this pattern of thought for every visit to the dark side, e.g. 'winter'.

The meaning of GD24 in Saturday is now clear: Saturn 'owns' the dark country and therefore also its two 'doors'.

Now I think we must return, this being the 8th page down through the hole of Hb4-7.