A strange image! It heads this section II of Trinosofia. The reproduction I copied it from is itself blurred, so I don’t know what the figures are at the “tunnel” entrance. Or is this a convex shape? I have left my perspective deliberately a bit awry. A portal of some kind … to an under of interior world. I had a dream of bricks looking watery, like an Irish or Highland stream with its autumnal glints. I may work on this a bit more, sometime.