Why do we feel unfulfilled?

Sometimes that sort of feeling is there to make us strive for more. If you have everything you need then you won't feel that so much. It maybe that you want a partner or better job and those feelings drive you to make the changes that can make this happen for you. Try to see the obstacles and disappointments as challenges to overcome, whithout them life would be boring for most of us. We don't live in this world for long but whose to say we don't live forever in the next?