Glowing Mystical Sphere Perched Atop a Rugged Stone Pedestal

Illustrate a glowing mystical sphere perched atop a rugged stone pedestal, encircled by gleaming runic symbols. Wisps of pale blue energy radiate outward from the sphere, casting light on fragments of ancient stone tablets floating nearby. Design the scene in an intricate celestial fantasy aesthetic, with gentle ambient illumination and a twilight backdrop filled with sparkling stars.