Upward Flow Rings as Portals in Ancient Calligraphy
Image C has a round torus with gaps at the bottom and top. The "J" at the bottom shows upward flow into the torus, the horizontal black line is a barrier marker, and the upward flow ring seems to be another portal going even higher. Image D and E also have upward flow. The bottom "C" shape on image D and the bent-back at the bottom of of image E have the same meaning, of inflow toward the core, which will be upward.
Image F has the horizontal line in a gap that reminds me of castle battlements, which mean a barrier between realities, aka, a portal location. Image G and H are showing horizontal flow from the loop on the left to the upward-flow-ring on the right, and then the flow goes up. Image G is using the horizontal plane of the torus, which can be a portal (and a barrier) and image H is using the horizontal part as a barrier, with a gap for the vertical barrier penetration thick line.
There is useful ancient knowledge waiting to be decoded from Arabic calligraphy and so far it is a great match for similar meanings from other worldwide symbol use.