Because humans are obsessed with their one great fear: that we are meaningless. People obsess over finding the answer because they are too scared that said answer does not exist. The truth is, life is just a freak stroke of luck. The exact right conditions combined, and somehow combined to make a machine. A natural, living machine. That's all life is, really. Extremely complex machines spewed out from the Random Number Goddess, the only deity that I am comfortable saying that I believe in.
Why am I suddenly so philosophical?