But it's an entirely different thing to let a story or idea run on out of control in your head.
You've gotta be master of your stories. You've gotta have self control.
"Do not be anxious about anything, but in every situation, by prayer and petition, with thanksgiving, present your requests to God. And the peace of God, which transcends all understanding, will guard your hearts and your minds in Christ Jesus." - Philippians 4:6-7