Rastafari movement, is a religion and philosophy that accepts Haile Selassie I, the former Emperor of Ethiopia, as God incarnate, whom they call Jah.          He is also seen as part of the Holy Trinity as the messiah promised in the Bible to return. The name Rastafari comes from Ras (Prince, Head, Duke or Chief) Tafari Makonnen, the pre-coronation name of Haile Selassie I.

The movement emerged in Jamaica among working-class and peasant black people in the early 1930s,[2] arising from an interpretation of Biblical prophecy partly based on Selassie's status as the only African monarch of a fully independent state, and his titles of King of Kings, Lord of Lords, and Conquering Lion of Judah (Revelation 5:5). Other factors leading to its rise include the sacred use of cannabis, and various Afrocentric social and political aspirations, such as the teachings of Jamaican publicist and organiser Marcus Garvey (also often regarded as a prophet), whose political and cultural vision helped inspire a new world view.

The Rastafari movement has spread throughout much of the world, largely through interest generated by reggae music—most notably, that of Jamaican-born singer/songwriter Bob Marley. By 2000, there were more than one million Rastafari faithful worldwide. About five to ten percent of Jamaicans identify themselves as Rastafari. Many Rastafari follow an ital diet which essentially means living by the dietary Laws of Leviticus and Deuteronomy in the Old Testament.

Haile Selassie I had already met with several Rasta elders in Addis Ababa in the 1950s, and had allowed Rastafari and other people of African descent to settle on his personal land in Shashamane.

Haile Selassie visited Jamaica on April 21, 1966. Somewhere between one and two hundred thousand Rastafari from all over Jamaica descended on Kingston airport having heard that the man whom they considered to be God was coming to visit them. They waited at the airport smoking a great amount of cannabis and playing drums. When Haile Selassie arrived at the airport he delayed disembarking from the aeroplane for an hour until Mortimer Planner, a well-known Rasta, personally welcomed him. From then on, the visit was a success. Rita Marley, Bob Marley's wife, converted to the Rastafari faith after seeing Haile Selassie; she has stated that she saw stigmata appear on his person, and was instantly convinced of his divinity. It must be said also that Jamaica had been suffering a serious drought at the time, that was suddenly punctuated by rain upon Selassie's arrival; this must also have done much to spread the Rastafarian message.

The great significance of this event in the development of the Rastafari religion should not be underestimated. Having been outcasts in society, they gained a temporary respectability for the first time. By making Rasta more acceptable, it opened the way for the commercialisation of reggae, leading in turn to the further global spread of Rastafari.

Because of Haile Selassie's visit, April 21 is celebrated as Grounation Day. It was during this visit that Selassie I famously told the Rastafari community leaders that they should not emigrate to Ethiopia until they had first liberated the people of Jamaica. This dictum came to be known as "liberation before repatriation."
The Rastas say that Haile Selassie will call the Day of Judgement, when the righteous shall return home to Mount Zion, identified with Africa, to live forever in peace, love, and harmony. In the meantime the Rastas call to be repatriated to Africa. Repatriation, the desire to return to Africa after 400 years of slavery, is central to Rastafari doctrine. The first Rastas, living on a Caribbean island, dreamed of the possibilities of Africa.

Many early Rastas for a time believed in black supremacy. Widespread advocacy of this doctrine was shortlived, however; at least partly because of Selassie's explicit condemnation of racism in a speech before the United Nations. Most Rastas now espouse a belief that racial animosities must be set aside, with world peace and harmony being common themes. One of the three major modern sects, the Twelve Tribes of Israel, has specifically condemned all types of racism, and declared that the teachings of the Bible are the route to spiritual liberation for people of any racial or ethnic background.

Some early elements of Rastafari were closely related to indigenous religions of the Caribbean and Africa, and to the Maroons, though these syncretic elements were largely purged by the Nyahbinghi warriors - dreadlocked Rastas who fought the corrupting power of some leaders who sought to add them to the Rastafari doctrines.

People of all races are to be found within the movement