Wether you give a meaning to your life believing in christianism, buddhism, islam, hinduism, atheism (which is a mix of philosophies and science etc) in the end it's you vs the world and you still have to create, find and maintain your place, to reproduce and teach your best strategies of survival to your offspring so he/she can climb the ladder even further. Basically whatever your system of believe to give a meaning and point to your existence, you re still an animal just like everyone else and it's not going to change. Now , what you re going to do with that intrinsical animality, how you re going to live, is conditionned by the belief system you ll choose. I personnaly think the superior system of belief that make people improve each others fairly is Christianism, and that it allow one to rise in society by earning and keeping money to insure your and loved ones survival better than others systems of belief. Christianism allows one to create, not sure about other religions or systems of belief; atheists are cynical, sarcastic and depressed, need pills to smile and laugh, and dont reproduce anymore while abusing everything under the sun before dying, muslims are jealous, envious, duplicit, parasitic, indhuists believe in feodal social classes, chinese are just able to copy russians and westerners, but cant create shit by themselves from scratch...