Gigantic glowing portal between dark realm and radiant world

A massive circular dimensional portal viewed from the front, standing vertically in a dark, shadowy spiritual realm. The viewer is positioned in the dark world, looking directly at the portal. The environment outside the portal is ominous and oppressive, filled with thick black smoke, dark fog, shadow energy, floating ash particles, and stormy atmosphere. The ground is cracked and lifeless, and the air is heavy with dark spiritual energy. The portal itself is a gigantic glowing circular energy wheel, with detailed rotating rings, glowing energy veins, lightning arcs, and swirling plasma effects. The portal emits strong volumetric light rays outward into the darkness. Inside the portal, clearly visible through the circular opening, is a bright, evolved, clean world filled with radiant white and golden light. The interior shows a peaceful, luminous environment with crystal clear air, glowing particles, soft clouds, and harmonious futuristic or divine landscape. The inside world looks pure, clean, calm, and elevated. The bright world is visible ONLY inside the portal opening, while the outside environment remains dark and shadowy, creating strong contrast. Cinematic composition, portal centered in frame, epic scale, ultra detailed, volumetric god rays, Unreal Engine 5 render, octane render, hyper realistic, dramatic lighting, depth of field, masterpiece, 8k resolution, sharp focus.