Aurora Crystal Entity in Prismatic Fields

Ultra-detailed 3D render of a crystalline entity standing in a windswept field beneath a vivid aurora borealis. The entity is a humanoid crystal golem, made of transparent, prism-like facets with an inner luminescent core that glows softly. Facets refract light, producing prismatic caustics across the grass. Surroundings include tall grasses, dew, distant low hills, and a light ground fog. The night sky swirls with greens, pinks, and purples from the aurora. Lighting combines cool aurora illumination with a warm internal glow from within the crystal. Render with physically based rendering, high polygon count, volumetric lighting, subsurface scattering, depth of field, and cinematic composition. The crystal is off-center, dominating the foreground, with a serene, otherworldly mood. Optional subtle motes of dust and small glasslike shards drifting around to enhance fantasy tech meets nature vibe.