伴随着析梦的长期文化史，梦的神秘渊源可能是为什么有些人认为梦具有如此的有影响力。

Along with the long cultural history of dream analysis, their apparently mysterious source may be partly why some people find dreams so influential.

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目前，研究人员猜测梦是大脑情感自动调节系统的组成部分，当大脑处于“掉线”状态时对情绪进行调整。 【析句】Suspect后面是that引导的宾语从句；逗号之后的现在分词短语regulating moods…作定语，解释thermostat 的意思，句末的while引导一个时间状语从句。

Now researchers suspect that dreams are part of the mind's emotional thermostat, regulating moods while the brain is “off-line”.

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