A surreal, dark fantasy digital painting of a mind prison on the lower astral plane. A solitary shadow figure sits trapped inside a cage shaped like a human skull. Heavy, rusted iron chains wrap tightly around the cage and the figure's chest, anchoring them downwards. The entire scene is engulfed in a thick, suffocating dark purple and ash-grey fog, with faint, eerie light filtering through the mist. The atmosphere is heavy, claustrophobic, and filled with a sense of mental entrapment and spiritual isolation. Cinematic lighting, photorealistic details, 8k resolution, gothic horror aesthetic. Mehr sehen