There is a vast difference between the temporary joys you derive from this apparent world and its transitory objects and phenomena, and the true joy that emerges from the depths of your heart. The latter joy is totally different from the temporary satisfaction you get from worldly things. This deep joy coming from the heart is associated with truth. It is permanent. It is detached from all transient worldly concerns. It represents the unity of the spirit. For this joy there is no possibility of change. There is nothing that can be added to true joy. It is full and complete in itself. (Drucker, 1998)