im sure that everyone would have thought of this at least once at some time or the other,

what is the meaning of our existence?
are we created by the gods of various religions or by some unnamed god on some random whim?
could we be living inside another world(the matrix basically)?
are we to live everyday to ultimately die?
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this got me intrigued and thinking,i'm sure that many people have different opinions and different answers,so post em up,i want to know ur different opinions and answers .