Don't let the sun go down with anger still around

My dad got a jar of little paper strips of advice from the Cv auction, and I picked one out...

It said: Don't let the sun go down with anger still around.

What does that mean?

Anger has never been an empowering thing since the beginning of mankind, because it sends out negative rays of energy. So what would the world be like if everyone was angry at the same time, even for one second. it will be the end of the world as we know it. Ouch.

So, what we can do is to shift the bad anger to good forgivance, to others and yourself...make the world better,starting now.