Take a jar. Fill it with water. Add a scoop of dirt.  Fasten the lid.  Shake the bottle. After a few shakes, place the jar on a table.  Allow it to sit in stillness.  What happens?  The mud settles to the bottom and clarity rises to the top.

Neuroscience has also established that these thoughts (messages) we send to our brains are then delivered to our whole body. What the mind does, the body does!