Not harboring unhealthy thoughts

I am in the middle of Elizabeth Gilbert's; "Eat, Pray, Love" and am enjoying every sentence. What I was reading today resonated with me so much that I wanted to share it here. There is no need for background knowledge of the book just this quote:

"I will not harbor unhealthy thoughts anymore"

Unhealthy thoughts do us no good. They only bring us down, make us angry, and never get us where we want to be. So I need to start taking control. Control of my thoughts. Understanding my unhealthy thoughts, and then letting them go. Setting them out to sail in the ocean.

A wooden sail boat set on fire with each unhealthy thought inside. The boat slowly burns, creating an amazing glow on the ocean, and slowly each unhealthy thought sinks to the bottom of the ocean, never to be seen again.

When unhealthy thoughts enter my head I need to repeat:
"I will not harbor unhealthy thoughts anymore"

I tried this today. Repeating this every time an unhealthy thought entered my head. I felt more at peace with myself, and a lot happier. I did not let my anger control me instead I controlled my anger. It felt good to be in control. I think I will stick with this one for awhile, I just hope in my time of need I remember it.