Bracketing (German: Einklammerung; also called phenomenological reduction, transcendental reduction or phenomenological epoché) is the preliminary step in the philosophical movement of phenomenology describing an act of suspending judgment about the natural world to instead focus on analysis of experience. Its earliest conception can be traced back to Immanuel Kant who argued that the only reality that one can know is the one each individual experiences in their mind (or Phenomena). Edmund Husserl, building on Kant’s ideas, first proposed bracketing in 1913, to help better understand another’s phenomena.