The greatest struggle facing mankind has always been the ongoing discontent and restlessness...always striving and never achieving enough. As a result there is a lack of true peace and contentment. It leaves us frustrated, dissatisfied a=disappointed and desiring more and more...That is why we see so many celebrities burning out. This is why Solomon's main idea : we need the One True and Living God in our life. Apart from Him we will find life shallow, meaningless and despairing disappointing.