hi! you'll find some earlier responses in these posts:
What are the oldest recorded dreams? - Greece, Babylon, Rome, Egypt
Before there was a scientific explanation, how were dreams explained? - Mesopotamia, Greece
... and you may find these other discussions about dreams interesting
What did people in your focus culture make of dreams? - Norse
What are some examples of interesting dreams from history? - various
What dreams have influenced history? - Rome, Mexico, August Kekulé, China
in /r/AskAnthropology: I have some questions about dreams/dreaming in smaller more isolated societies.