aetiology
(the study of the causes of things) and
teleology
(the study of the purposes of things)
Links
Teleology is fake
Eschatology - (éskhatos) 'last' and -logy) concerns expectations of the end of present age, human history, or the world itself.
Sacrament - understanding of how the divine is made present within creation. a rite that as a visible sign or representation of gods hidden action
Liturgy - is the customary public ritual of worship performed by a religious group