Create an image of a surreal underwater world where schools of fish appear to be floating through a mesmerizing optical illusion of swirling colors and shapes, blending the real with the abstract in a truly mind-bending experience.

A detailed vivid portrayal of a complex underwater universe. Fish in various shapes and sizes, floating as if in school formations, traverse the vibrant aquatic expanse. This enigmatic underwater realm morphs the ordinary into the extraordinary, with colors and forms intermingling in an enchanting optical illusion. This kaleidoscope forms a poetic fusion of reality and abstraction, creating an utterly mind-expanding spectacle. A setting transcending the conventional bounds, where the mundane and the fantastical intersect and dissolve into each other.