Text - if religion doesn't develop from need, then how come almost every single society developed it through the course of history. From tribes in Africa to Aboriginals to anything - religion has been a lynch pin in almost every society in recorded history.
It takes on various forms (witchcraft, magic, spirituality) but the idea of a supernatural deity or entity is about as close to a universal as you can get in the structures of a society.
It is only recently as our factual knowledge base expands that people have not 'needed' religion.
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