Fantasy novels often depicted characters and plots through environmental descriptions. Below are some commonly used sentences to describe the environment: The gloomy and heavy clouds in the sky were so low that it seemed like they would fall at any moment. The trees in the forest were tall and dense, and their branches were intertwined together like a huge living being. The distant mountain peaks towered into the clouds, and the clouds curled around the top of the mountain as if it was an illusory paradise. The breeze gently brushed the green grass on the grassland, and the sunlight shone through the leaves on the grass, creating a lively scene. The underwater world is full of mystery and danger. The coral reefs are exquisite and the deep blue color of the sea makes people feel deep and terrifying. The sun in the desert was so strong that it was difficult to breathe, and the sand was so hot that it was difficult to stand. The air was filled with thick sand and dust. The ancient castle exuded a faint sinister aura. The patterns on the walls seemed to be able to feel the master's breathing. The clouds in the sky seemed to have been magically transformed into various forms, making it difficult for the eyes to catch them. The stream in the forest was so clear that the bottom could be seen. The water flowed slowly, and the fish swam around leisurely. The wind on the mountain top blew the leaves wildly, and the sunlight shone through the gaps of the leaves, giving people a spectacular and majestic feeling.