阅读下面材料，在空白处填入适当的内容（不多于3个单词）或括号内单词的正确形式。
Until recently daydreaming was viewed as a waste of time or it   (consider) an unhealthy escape from real life and its duties. But now some people are taking a fresh look at daydreaming. Some think it may be a very       (health) thing to do. Some researchers are finding that daydreaming may be important to mental health. Daydreaming, they tell us,       a good means of relaxation. But its benefits go     this. A number of psychologists have conducted experiments and have reached some      (surprise) conclusion.
Dr. Joan T. Freyberg has concluded that daydreaming contributes growth. It also improves  (concentrate),attention span, and the ability to get along with others. Industrialist Henry J.Kaiser believed that much of his success was due     the positive use of daydreaming. Florence Nightingale dreamed of becoming a nurse. The young Thomas Edison pictured      as an inventor.
For these notable achievers, it appears that their daydreams came     .Dr Harry Emerson Fosdick offered this advice: “Hold a picture of yourself…in your mind’s eye, and you will be drawn toward it. Picture yourself      (vivid) as defeated and that alone will make victory impossible.