Apart from the continuing controversy about its alleged practice in the Unification Church, in 1957 Korean journalist Kim Gyeongrae published several articles and a book tracing the roots of "p'ikareum" to Kim Baek Moon and the Israel Monastery and claiming, offering some evidence, that it was practised by what was at that time the largest Christian new religious movement in Korea, the Olive Tree, founded by Park Tae-Seon (1915–1990).