what exactly is the purpose of life? Does is exist?

what exactly is the purpose of life? Does a purpose exist at all? Why do we value something which is temporary? why do we have to attach ourselves to something and then feel the pain when it is taken away from us? why exactly are bonds made? Why do we have to look forward to things.. what is the whole meaning behind expectation and hope. Why are we being tricked day in and day out? Why do we wake up thinking today will be better? Whats the difference between living a life of accomplishments and a mediocre one.. cos death is still the same… Whats the fishing difference? why this struggle.. why this pain.. why this agony.. and most of all.. why so many questions?