Given two things, create a metaphor to compare them.
Things: A roller coaster and life
Life is a roller coaster, full of ups and downs, twists and turns, moments of thrill and moments of fear, but through it all, we hold on tight and enjoy the ride.
Complete the following task based on the instruction and optional input provided.### Instruction:
Given two things, create a metaphor to compare them.

### Input:
Things: A roller coaster and life

### Output:
Life is a roller coaster, full of ups and downs, twists and turns, moments of thrill and moments of fear, but through it all, we hold on tight and enjoy the ride.