摘要
导读：房间要经常打扫，不打扫就会落满灰尘。心灵的房间也是如此，只有经常清理，才能拥有纯净无污染的内心世界。
Think about the last time you felt a nega- tive emotion--like stress, anger, or frustration. What was going through your mind as you were going through that negativity？ Was your mind cluttered with thoughts？ Or was it unable to think ？
