Use the things of the world, but long for the things of eternity. You cannot be fully satisfied by material possessions, for you are simply not made to enjoy them.
Even if you owned every good thing in the world you would not be happy and blessed, for your blessedness and joy is in God, who created all those things.
Your happiness is not in what is seen and admired by others, but in what the good and faithful followers of Christ seek. Your happiness is in what the spiritual and pure of heart...sometimes experience in this life, though it is meant for the next.
Thomas à Kempis, The Imitation of Christ