This is often a type of dream called a 'lucid dream', when a person knows they are dreaming.

这一种叫做“清晰梦境”，即人们知道此时自己正在做梦。

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D dream (dreaming) : dare to dream big it seems impossible to trace the most absurd dream.

d梦想(dreaming)：敢于做大梦，追寻似乎是不可能的最荒诞的梦想。

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Teach yourself to lucid dream by keeping a dream journal and learning reality checks and dream extending techniques. (Some great comments here by lucid-dreaming readers, too.)

当发生这种事情的时候 你要告诉自己 知道你在做梦 不要被梦左右.知道你在做梦以后你能更好的控制梦的发生.你可以通过写日记来学习澄清梦境 还可以学习一些关于做梦的技巧.(这里有一些lucid-dreaming的读者的很实用的评论).

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Deep into that darkness peering, long I stood there wondering, fearing,Doubting, dreaming dreams no mortal ever dared to dream before;

VOA: special.2010.10.31

He hears a noise at the window: Deep into the darkness peering, long I stood there wondering,fearing,Doubting, dreaming dreams no mortals ever dared to dream before;

VOA: special.2009.02.02

Lucid dreaming refers to the ability to become aware during a dream that you are in fact, dreaming, and being able to exert some control over what happens in the dream.

FORBES: Saying 'Hi' Through A Dream: How The Internet Could Make Sleeping More Social

Les Miserables producer Cameron Mackintosh said being nominated for an Oscsar was "dreaming the dream".

BBC: Reporter's log: Oscars 2013

When it comes to the American Dream, you are not dreaming.

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