"Liturgy is the customary public worship performed by a religious group, especially by a Christian group. As a religious phenomenon, liturgy represents a communal response to and participation in the sacred through activities reflecting praise, thanksgiving, remembrance, supplication or repentance. It forms a basis for establishing a relationship with a divine agency, as well as with other participants in the liturgy.
Technically speaking, liturgy forms a subset of ritual. The word liturgy, sometimes equated in English as "service", refers to a formal ritual, which may or may not be elaborate, enacted by those who understand themselves to be participating in an action with the divine." - (en.wikipedia.org 15.01.2022)
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