Generate a phrase that describes the feeling of dread.
A sinking feeling in the pit of your stomach, as though a darkness is slowly enveloping your thoughts with an overwhelming sense of fear and anxiety.
Complete the following task based on the instruction and optional input provided.### Instruction:
Generate a phrase that describes the feeling of dread.

### Output:
A sinking feeling in the pit of your stomach, as though a darkness is slowly enveloping your thoughts with an overwhelming sense of fear and anxiety.