Those colors, those shades, every last one of them represented aspects of creation, but to be more specific, they represented the Material Dao of the entire world. Whether it was the nine elements, light, darkness, jade, scarlet, or golden. It reflected all of them and far, far more.
This was the Eye of Creation!
Wei Wuyin still found it hard to believe! He initially thought the solution to his eyes would be finding advanced versions of the Celestial Eyes of Spiritual Divinity's three eyes, allowing their spell formations to withstand greater spiritual strength. He hadn't expected that sharing the load with an additional Eye was sufficient to balance out the overwhelming spiritual strength, divided amongst four instead of three.
They were no longer filled to the brim, threatening to explode. It was fascinatingly odd, yet it solved the issue.