This is funny!! (cyclic universe video)
It's silly to ask these question to a scientist. But ironically, one of the best answers I have ever heard came from physicist, Alan Guth:
"It's ok to ask those questions, but one shouldnt expect to get a wiser answer from a physicist. My own emotional feeling is that life has a purpose - ultimately, I'd guess that purpose it has is the purpose that we've given it and not a purpose that come out of any cosmic design."