Give me a metaphor that describes sadness.
Sadness is like heavy storm clouds that obscure the bright warmth of the sun, casting a shadow over everything, making the world feel dark and overwhelming.
Complete the following task based on the instruction and optional input provided.### Instruction:
Give me a metaphor that describes sadness.

### Output:
Sadness is like heavy storm clouds that obscure the bright warmth of the sun, casting a shadow over everything, making the world feel dark and overwhelming.