Good & Bad: Package Deal

Doesn't it surprise you,
How Good and Evil go hand-in-hand?
A period of Evil allows oncoming Good to shine,
A period of Good breaks down hard 
when Evil rises.

We can't have one without the other,
Like twin brothers. 
Simply showing how the Sun rests for storms,
And storms allow love for the Sun.

I suppose one should love the bad days,
As one basks in the rays of good days,
No matter how long they stay,
Lessons are being taught,
Without having to be bought.

Author's Note

Day 16 of the May Prompts. Topic: Good vs. Evil. Short piece. Slice of life theme to it too.