THINGS WILL WORK OUT! That's the mantra of the optimistic. When you don't have to waste too much brain space with self-doubt, your amazing mind gets to work on the question of HOW things will work out, not IF they will. That leads to all those wonderful problem solving strategies that come from thinking with flexibility, creativity and innovation. Stretchy thinking gets things done!
Everyone needs their own turtle shell. An optimistic attitude protects us from the slings and arrows of anxiety. When we fill ourselves up with the powerful beliefs that we can shape events, we create our own safe haven from the doubts and worries that can paralyze us into giving up. If we assume the future will look brighter (Yes - even if we don't know for sure!), we're able to tolerate so much more stress in the present, that would otherwise be just too hard to take.
Sometimes we need all the energizer energy we can muster when the going gets rough. An optimistic attitude is just the thing to "keep going and going and going and going". When we believe in positive outcomes, we work harder and longer to turn our positive predictions into reality.
So, they say that "curiosity killed the cat", but Happiness research is showing us that curiosity can also lead to a greater sense of meaning and contentment. Curious people who are open to stretching their knowledge and experiences "outside of the box" report that their greater exploratory mindset brings happy rewards. So, try something new, learn something different, and open your eyes to new happy possibilities!