That’s a neat trick, but it’s a double‑edged sword. Light can cue a whole mood, but if the shadow just twirls for no narrative reason, players might think it’s a gimmick. If you can tie the clockwise movement to something in the lore—like a rotating sigil or a clock of fate—then it becomes a subtle hint that something’s off track. The key is to embed it in the story’s logic; otherwise it feels like a visual Easter egg that nobody notices. Give it a reason, then you’ve got a visual hook that rewrites the motive in a way that feels earned.

I’d say go as deep as the core of the narrative. If the shadow’s turning clockwise is echoing an ancient pact that’s been binding the realm for ages, players will feel the weight of that history even if they don’t consciously know the detail. But if you drop a ton of back‑story in one bite, they’ll be overwhelmed. Strike a balance—hint at the lore with a subtle symbol or a line of dialogue, then let the visual cue do the heavy lifting. That way the plot shift feels earned, not just a fancy trick. How many layers are you willing to embed before it becomes overkill?