Original: A great deal of emphasis was placed on the forms of worship , as they were seen in terms of the Latin phrase lex orandi , lex credendi ( '' the rule of prayer is the rule of belief '' ) -- that is , the specifics of one 's worship express , teach , and govern the doctrinal beliefs of the community .
Simplified: In general , worship for the Eastern churches and for the Catholic and Anglican churches in the West is centered in regular celebration of the Lords Supper , celebrated by a priest with more or less participation from the whole body of believers that are there .