Flow, or Flow state?
(of a fluid, gas, or electricity) move along or out steadily and continuously in a current or stream.
"from here the river flows north"
go from one place to another in a steady stream, typically in large numbers.
"the firm is hoping the orders will keep flowing in"
the action or fact of moving along in a steady, continuous stream.
"the flow of water into the pond"
a steady, continuous stream of something.
"she eased the car into the flow of traffic"
What is a flow state?