In Western Christianity, a sacrament is a rite instituted by Christ, that mediates grace, constituting a sacred mystery. A sacrament is best described as an outward sign instituted by Christ symbolizing and conveying an inner belief or spiritual grace. Different branches of the church veiw the sacraments in different ways. While Roman Catholicism upholds them as sacred mysteries necessary for salvation, the Orthodox church tends to veiw tham as a way to commune with God. Some Protestant churches such as Anglicanism uphold the seven sacraments but consider only baptism and communion completely necessary while the other five are secondary sacraments. All branches of Christianity practice the seven sacraments in some way even if it is not considered a sacrament. The ceremony of each act is slightly different in each branch.