Construct a metaphor for smile.
A smile is like a ray of sunshine, breaking through the clouds to warm and brighten even the darkest of days. Like the sun, a smile has the power to bring light and happiness, to both the one who gives it and the one who receives it.
Complete the following task based on the instruction and optional input provided.### Instruction:
Construct a metaphor for smile.

### Output:
A smile is like a ray of sunshine, breaking through the clouds to warm and brighten even the darkest of days. Like the sun, a smile has the power to bring light and happiness, to both the one who gives it and the one who receives it.