Orthodox Christianity is the third branch of christianity, along with Catholic and Protestant Christianity. All three branches differ radically not only in liturgical and dogmatic matters, but they also have differing outlooks on life.

Basically, Orthodox Christianity takes the view that the purpose of christianity is personal growth towards a more spiritually rewarding existence; "sin" is simply when somebody "misses the mark", does not live up to expectations. (Indeed, the Greek word for sin roughly translates as "missing the mark".) For that reason Orthodox Christianity tends to be more tolerant and readily welcomes "born again" people even if they previously sinned a great deal. (For example, it is not at all uncommon to see recovering drug addicts find a safe refuge in Orthodoxy.)

Orthodoxy is also unique in that it takes a wholly mystical view of religion, that is, the view that a truly earnest faith can be experienced only on an irrational, emotional level. Orthodox Christians generally believe that any attempts to rationalize faith is flawed and usually incompatible with christianity.

Finally, Orthodox Christians believe that salvation is a life-long process; to be saved you need to constantly work on yourself, improving your spiritual health.

Typically, Orthodox Christianity is the most conservative church, in the sense that any changes take place extremely slowly and gradually. (This does not mean that the Orthodox Church condones conservative political ideology, though.)