Rastafari is lived rather than assented to, and the word for the whole of it is livity, the conduct of life in accordance with the divine energy the movement holds to be present in each person.
Language comes first, because Rastafari treat English as an inherited instrument of oppression and remake it. In the speech usually called Iyaric, the object pronoun me is refused, since it casts the speaker as something acted upon, and replaced by I; I-and-I stands for the speaker, the listener and Jah present in both, and dissolves the line between I and you. Understand becomes overstand, oppression becomes downpression, dedicate becomes livicate. This is theology carried out in grammar.
Ital food, from vital, is natural and unprocessed, cooked without salt or with very little, free of chemicals and preservatives, usually free of pork and commonly vegetarian or vegan. Alcohol is generally rejected. Dreadlocks are grounded in the Nazirite vow of Numbers 6, which forbids a razor to touch the head, and they served as a deliberate and costly refusal of respectability; Rastafari were arrested and forcibly shaved in Jamaica for wearing them, most notoriously at Coral Gardens in 1963.
Cannabis is a sacrament, not a recreation, and the distinction is insisted upon. The scriptural warrant is drawn from Genesis 1, where the herb bearing seed is given for use, and from Psalm 104, where herb is made for the service of man. It is smoked in a chalice at reasonings, sessions in which participants discuss scripture and events and out of which the movement's thinking is worked out collectively, since there is no clergy to do it for them. Not all Rastafari use it. Jamaica's Dangerous Drugs (Amendment) Act 2015 made explicit provision for Rastafari sacramental use.
Babylon is the system: the police, the commercial order, the state, and the mental captivity these produce. Against it stands repatriation to Africa, held literally by some and spiritually by others. Land at Shashamane in Ethiopia, granted by Haile Selassie in 1948 to members of the Ethiopian World Federation, has been settled by Jamaicans since the 1960s, and the settlers there have faced long-running difficulties over citizenship and title.