Your navel – this is Zion, which is the navel of the world,cxxviiBT Sanhedrin 37a the point from which the world was founded (hushtat),cxxviiiBT Yoma 54b into the four directions which are: east and west, north and south.
And corresponding to them: the head to the east, the body to the west, arms to the south, legs to the north.
The sign of the covenant is a central point, like the navel –... a moon-shaped dish.
This is the ‘point’ of the moon, like this: כּ Khaf and it is reishyt (beginning) – the point in the letter בּ Beiyt.