Blessed Love Black Heart,
I'm simply a student in InI School of Mysteries. The first thing that come to I mind is the what is referred to as the "Masonic Mosaic Pattern" or "Chequered Floor". InI know that these
symbols originated from ancient Kush/Kemet, and have esoteric, cosmological, mathematical and geometric meanings. Below are some examples
THE CHEQUERED FLOOR TILES AND TIME
The chequered tiles on the floor represent time. Each tile appears to symbolise 20,000 years of time.
SACRED GEOMETRY AND THE MASONIC LODGE FLOOR EXPLAINED
"its symbolic geometric and mathematic relationship to the Ark of the Covenant, the Tabernacle, the Hebrew camp in the desert, the breast plate of the Priest, the Temple, the Holy of the Holies, Ezekiel’s descriptions, and the New Jerusalem in Revelation 21; all of which are closely related.
Reading Bromwell, it doesn’t take long to think about tile work on sacred buildings (masonry = architectural geometry at one level). Then there is the duality depicted in the ‘back and white’ floor pattern and we are back to dualistic gnosticism. Astromomy dictates two floor patterns. One is sets of lines parallel to the equator, latitude lines. The square tile has one face in the north, one in the East, south and west.
But what does all that mean you are asking?
It means that the Bible is describing the Lodge Floor in form and situation. And that, as you suspected it is all about astronomy. The boxes-within-boxes refer to the celestial or plantary spheres.