"We are what we think. All that we are arises with our thoughts. With our thoughts we make the world" (Dhammapada 1 [tr. Thomas Byrom]). Our minds can be a help or a hindrance depending on whether it is in line we reality. Most of the time it is confused about reality. We need to stop thinking and start noticing.

"People are not disturbed by things, but by the view they take of them." - Epictetus

"No one ever steps in the same river twice." - Heraclitu