There is a stream running through a forest with lots of lights

An expansive underground realm bathed in the soft, soothing light of bioluminescent flora. Towering trees with glowing leaves create a canopy of light, while vines covered in tiny, glowing flowers drape down from above. The ground is alive with luminous ferns and bushes, casting a gentle radiance that illuminates the serene landscape. Small, glowing creatures, like fireflies and gentle floating orbs, move peacefully through the air, adding to the tranquil ambiance of this hidden utopia.