Your mind can’t do its job if it’s filled with inflexible ideologies and judgments. A degree of emptiness is required to let thoughts come and go without letting them sit around and go stale. Meditation encourages this flow of ideas. Metaphorically, the in and out movements of the breath provide a framework by which thoughts flow in and out. Allowing everything to come and go without latching on, as we all do to varying degrees, totally changes your relationships with events, ideas, people and things.