In his great household and on his great lands, Solomon needed a large number of servants, some of whom were long term and had their own children. They added to his stature as a king, since one measure of a man in the eyes of the world is the size of his retinue.
But did any of this really satisfy his inner longing? He is quite clear about the answer to that question. It left him empty inside, and what he thought would surely be able to satisfy disappointed him profoundly. He may have known temporary happiness along the way, but it did not last, because his possessions were being required to do what no possessions are able to do. How can our possessions fill the void within us when we know that we cannot take them with us? They belong to the realm of things which has been touched by God and is subject to the law of decay. The soul senses its own future existence, and it searches for something that can last as long as it will last. Besides, the problem of our unresolved enmity with God steal all true joy that we obtain from any substitute for him. Ultimately the love of possessions is a form of idolatry that sets us against the Lord.