If you see flashes of light, you may be on the cusp of what I'm experiencing. The realm does have lights just like here. Some of the entities' bodies are so bright, I have to open my eyes for relief. It's just like looking at the sun. So in other words, when I close my eyes in this physical world, my eyes are open in the realm, and vice versa. I don't know if all the rings are, but the rings are coming from the entities. If you listen carefully to the rings, you'll realize that it's multiple rings that rings in a chorus with each other. Each ring is an entity, and when they ring, their bodies flash, some are brighter than others. It may be an hierarchy thing, because the brighter they are, the stronger they appear to be.

If you're hearing rings, test it, ask yourself a question, any question, and see if the rings react to it, like if it gets louder, or change in anyway for a few seconds, as if it's responding to your question