Keshav's Ouroboros: a Flux Tube That Inflates and Loops
Keshav made image A. I am saying image A is like an ouroboros, and giving it yet another meaning besides the ones you know.
Ouroborous can be a portal ring, like image F. It can be the outer barrier around a torus like image G (which has a fiery barrier penetration going upward to that Sol portal). Now I'm adding to ouroboros, the idea that the snake body is a flux tube that is gradually inflating (image B) until it reaches it's limit, then from its mouth portal, high-density stuff comes out and some of it reforms a new little flux tube.
Image E is showing this idea more easily. Image H was the origin of realizing that there is a cycle happening. Study it closely, it has a smoothly expanding part, then it becomes wavy and deflates and most of it disappears via little eddy vortices but some is drawn back to the starting point. Look for little flux tubes reforming where the big ones spills out. Image C is the same idea, it has very small high-density outflow at the top of the head, in a flux tube that inflates/expands until it comes to the portal at the neck. Then the cycle repeats. Image D is also a similar idea, just not showing a circle.
Image A is equating those snakeheads to the flower petals of a portal, and there is a snaketail there that goes down and eventually comes back up in an expanding form. Halfway across image A is a white line showing the barrier between lower density and higher-density, and the flower is the portal into higher density. We don't need to be always dramatic about high-density being a separate reality/dimension like "heaven". The idea of a co-located higher-density associated with every bit of matter and energy in our reality is sufficient for the cycle of ouroborous to be about energy conservation looping into a place we scientifically can't detect and then back to us, "real"-ity and sur-"real" looping.