How did our ancestors respond to their dreams? Bustle takes a look back in time. 

The idea that dreams could predict the future is one of the most ancient ideas around; the practice of “incubation” — of staying in a certain sacred place and doing rituals to welcome prophetic or helpful dreams — has been found across various ancient cultures. However, there’s a lot more to dreams and their history in civilization than that. From spells to demons, livers to pregnancy, here are some of the oddest beliefs about dreams; your grandmother’s insistence that bad dreams come from indigestion looks basically sane by comparison.

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