“Doubt make devil.”
This is Japanese old proverb.
When you have doubt and imagine the supposition,
commonly you think about bad thing.
Such as “Possibly it may be …”
Doubt thinking dominate you and rob your trust.
Your heart become dark and close, your feeling also bad.
At such time, there are a invisible devil in your heart.
Actually doubt is unneccesary worry, but many people make unneccesary devil.
At first it is important to check and believe.