Primitive Buddhist texts define four aspects of right mindfulness: that the body is impure, that perception is the source of suffering, that the mind is impermanent, and that all things are without self. For a Buddhist, remembering these things provides a powerful, unfailing source of religious energy for the practical application of faith. In everyday life, right mindfulness means being aware of what is happening at all times and avoiding carelessness or thoughtlessness.
Basic Buddhist Concepts