Christians of the Eastern Churches call themselves Orthodox. This description comes to us from the fifth century and has two meanings which are closely related. The first definition is true teaching. The Orthodox Church believes that she has maintained and handed down the Christian faith, free from error and distortion, from the days of the Apostles. The second definition, which is actually the more preferred, is true praise. To bless, praise, and glorify God the Father, Son, and Holy Spirit is the fundamental purpose of the Church. All her activities, even her doctrinal formulations, are directed toward this goal.Occasionally, the word Catholic is also used to describe the Orthodox Church. This description, dating back to the second century, is embodied in the Nicene Creed, which acknowledges One, Holy, Catholic, and Apostolic Church. From the Orthodox perspective, Catholic means that the Church is universal and also that she includes persons of all races and cultures. It also affirms that the Church has preserved the fullness of the Christian faith.It is not unusual for titles such as Greek, Russian, and Antiochian to be used in describing Orthodox Churches. These appellations refer to the cultural or national roots of a particular parish, diocese, or archdiocese.