What function do dreams hold in the mind?

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Of course no one really knows... but what do u think?

I've heard from an evolutionary standpoint (I think it was on like, V sauce or some TED convention) dreams play a part in preparing us for the following days tragedies, being that dreams often have a negative connotation. That seems far fetched/stoopid to me though.

Maybe dreams are our subconscious interpretation of the transcendent (lol, na)

Or maybe just our brain going over what happened during the day.

I dunno, what do you know?! Fuck you...