Being in flow is when you are “in the zone,” “on your game,” or even “on fire.” It is both a mental state and a physical one. You have a feeling of complete focus, full involvement, and deep enjoyment in whatever you are doing. You feel the activity takes no energy from you—indeed you feel that it is giving you energy. You barely notice the passage of time. You feel calm but almost ecstatic. Most of us have glimpsed being in this state. But what if you could be in your zone not just for a ...