" And the dark night of flow is an issue that society has not made particularly easy to handle. How many people have stopped playing guitar, writing poetry, or painting watercolors—activities packed with flow triggers—because these are also activities that do not squarely fit into culturally acceptable responsibility categories like “career” or “children”? How many, now grown up and done with childish things, have put away the surfboard, the skateboard, the whatever? How many have made the mistake of conflating the value of the vehicle that leads us to an experience (the surfboard, etc.) with the value of the experience itself (the flow state)? "

― Steven Kotler , The Rise of Superman: Decoding the Science of Ultimate Human Performance