Mood: Enigmatic | Subject: A geometrically perfect formation of obsidian stones scattered on the volcanic ash beach | Timing: Midnight, under a sky awash with the mesmerizing colors of the Aurora Borealis | Lens: Wide-angle | Lighting Conditions: The celestial dance of the Northern Lights casting an otherworldly glow on the obsidian stones | Style: Fusion of enigmatic natural beauty and abstract geometry | Colors: The luminescent greens and purples of the aurora contrast dramatically with the deep blacks of the obsidian stones and volcanic beach | Background: A backdrop of a dark, infinite ocean, its rhythmic waves adding depth and mystery | Perspective: Ground level, capturing the enigmatic spectacle of the obsidian stones against the hypnotic aurora-lit sky | Focal Point: The largest obsidian stone, its polished surface reflecting most of the aurora's ethereal glow | Space: Expansive, emphasizing the grand scale of the beach and the enigmatic beauty of the midnight | Pattern/Texture: The smooth, geometric pattern of the obsidian stones contrasted with the coarse, granular texture of the volcanic beach | Element defining the scale: A solitary, detailed shard of obsidian in the foreground, its reflective surface providing a sense of the scene's enigmatic scale | Depth of Field: Deep, focusing on the obsidian formation while subtly blending into the aurora-lit ocean backdrop | Feeling: Mysterious and awe-inspiring | Contrast elements: The enigmatic scene of a geometrically perfect formation of obsidian stones on a volcanic ash beach under the Northern Lights, their natural beauty and abstract geometry enhanced by the celestial light show, set against the backdrop of a mysterious, aurora-kissed ocean.