This paper analyses its process on the basis of topological psychology and sets up an operational principle: to promote subconscious learning, the level of irreality should first be raised.

运用拓扑心理学原理分析了潜意识学习的过程，进而提出了第二语言潜意识学习的操作性原则：要提高第二语言潜意识学习的水平，就要提高个体心理的非现实性水平。

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The city always had a fairy-tale aspect, but until the seventeenth century its irreality was checked by an appetite for business.

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