Best friends will be the people beside us when we are lonely, bring us endless joy and moreover, they are always the ones who can lend us shoulders, share our feelings with us.Here are 10 reasons why we should all have a friend or pen pals:1. Always bring a new perspective of lifeIt is easy to get stressed or get into a state of anxiety when you feel stuck on certain problems and can't find a solution. Your best girlfriend is the person you need most right now. They can give you a new persp…