To obey and worship the one true God. You obtain peace in this life and you will receive reward in the next life. Think about it, if all the Mosquitos on earth died, all of life would cease to exist. But if all the humans died, nothing would happen. Our purpose is greater than that of this world. So then what is our purpose? Our purpose is to obey Almighty God, do good in his name, speak the truth, help people in order to achieve paradise. Our purpose is meant for something much greater than living and dying on this earth.