The Rātana movement is a Māori religion and pan-tribal political movement founded by Tahupōtiki Wiremu Rātana in early 20th-century New Zealand. The Rātana Church has its headquarters at the settlement of Rātana, near Wanganui.

In 1918 Rātana saw a vision, which he regarded as divinely inspired, asking him to preach the gospel to the Māori people, to destroy the power of the tohunga, and to cure the spirits and bodies of his people.

Until 1924 he preached to increasingly large numbers of Māori and established a name for himself as the "Māori Miracle Man". Initially, the movement was seen as a Christian revival, but it soon moved away from mainstream churches. On 31 May 1925, Te Haahi Rātana (The Rātana Church) was formally established as a separate church, and its founder was acknowledged as Te Mangai or the mouthpiece of God.

Hostile attitudes have caused the church to be guarded towards its teaching and founder.

The Rātana Church is made up of the Ture Wairua (spiritual laws) and the Ture Tangata (physical laws). The spiritual laws were itemised as the Father, the Son, the Holy Spirit, and the faithful angels.

Imee Ooi (pronounce as English "E-ME WOO --E"^{[needs Chinese IPA]} (connected) - Ch: 黃慧音, pinyin: Huáng Huìyīn, which means HUANG-Yellow - HUI-Wisdom - YIN-Sound/Music, being her original name by birth) is a Malaysian music producer, composer, arranger and vocalist who brings traditional Buddhist chants, mantras and dharanis (typically from the Sanskrit, Pali, Tibetan or Mandarin languages) into sung versions with accompanying musical scores. She also is a classical pianist by training.

Ooi is the musical director and composer of two highly-acclaimed stage musicals; Siddhartha and Above Full Moon, and is currently working on a musical entitled Jewel of Tibet. The musical is set during the Tang Dynasty and is about a Tang princess who marries a Tibetan king and how she brings Buddhism to Tibet.

Imee Ooi established I.M.M Musicworks in 1997, and to date has released over 20 albums.