It's getting dark, and the wind has rolled up the rain on the rivers and lakes, splashing all over the mountains like huge waves.
The small fire and the felt wrapped around it are so warm that neither my cat nor I want to go out.
Interpretation: The sky is dark, the wind is rolling the rain on the rivers and lakes, and the heavy rain on the surrounding mountains is like the sound of huge waves rolling. The small fire burning in the stream and the felt wrapped around me are very warm, so neither the cat nor I want to go out.