Paris is demonstrating flow.
Flow or "being in the zone" refers to a state of being or mental state where a person is completely engrossed in an activity with energized focus, and derives great fulfillment and enjoyment from it. When a person is in a state of flow or deeply focused, hours seem to pass by without the person realizing it. Being in a state of flow leads to optimal productivity. Flow occurs when the challenge of a task matches the person's level of skills.