A hidden oasis beneath the massive roots of an ancient oak tree. A narrow crevice opens within the gnarled root system, revealing a secluded underground cavern. The space is softly illuminated by glowing bioluminescent moss and lichen clinging to the damp walls. Delicate, tangled roots hang from the ceiling, their tips dripping crystal- clear water like silent tears. The droplets fall into a pristine, mirror- like pool, its surface undisturbed and shimmering with an ethereal glow. The atmosphere is mystical, serene, and untouched by time