I believe that getting your emotions and feelings out of your head and into the atmosphere or onto some paper is really helpful. It's like when you blow up a balloon and there's all this pressure building up inside it the bigger it gets until it eventually pops. But that pressure is relieved when you let the balloon go (before you tie a knot obviously). When our emotions and feelings remain in our heads we often feel guilty or ashamed about them, we go over them again and again and imagine worst case scenarios, we get stuck and don't move on. By talking about them or writing them down, it helps us to move on.