有点像刻意练习，必须要是高技能有挑战性领域，在学习区，有明确的目标和即时反馈。忘记自我，忘记时间。
心流也有风险，往往使深度受者上瘾，对日常琐事感到烦躁。
Csikszentmihalyi himself is very much aware of the dangers of flow. He writes:
‘…enjoyable activities that produce flow have a potentially negative effect: while they are capable of improving the quality of existence by creating order in the mind, they can become addictive, at which point the self becomes captive of a certain kind of order, and is then unwilling to cope with the ambiguities of life’.
Addiction to flow can also lead to losing a larger perspective. A workaholic manager may lose himself in flow at work until 10 or 11 at night, forgetting dinner, his family or saying goodnight to the children.
