Your mind is an instrument, a tool. It is there to be used for a specific task, and when the task is completed, you lay it down. As it is, I would say about 80 to 90 percent of most people's thinking is not only repetitive and useless, but because of its dysfunctional and often negative nature, much of it is also harmful. Observe your mind and you will find this to be true. It causes a serious leakage of vital energy.
Eckhart TolleThe next step in human evolution is not inevitable, but for the first time in the history of the planet, it can be a conscious choice. Who is making that choice? You are. And who are you? Consciousness that has become conscious of itself.
Eckhart Tolle