And the results you get can be incredible. Intrinsic motivation - whatever produces flow becomes its own reward. Almost any activity, talking, cooking, etc., can produce this feeling, if you try to introduce some of these aspects into it. Most people are in jobs that keep them either in a state of anxiety, where challenge is high and their skills are low, or of boredom, where their skills are high and the challenges are low. Where challenge and skill are equal lies apathy.
Flow is a moving target.
It exists at the cutting edge of a persons' skills. Everyday tasks, dishes. Boredom tends to be experienced more by students of the Arts and Social Sciences while worry and anxiety are found in students of Math and Science. Under the best circumstances, people who are unable to focus and not willing to open to it and able to understand how to open to this transformation cannot make their lives exciting. Interruptions are usually destructive to the experience, but some tasks have anticipated periods and stopping points, which are fine.