Analysis of information sources in references of the Wikipedia article "通靈板" in Chinese language version.
Almost since its invention in the late nineteenth century, the Oujia board has been associated with the threat of demonic possession.
Practically since its invention a century ago, mainstream Christian religions, including Catholicism, have warned against the use of Oujia boards, claiming that they are a means of dabbling with Satanism (Hunt 1985:93-95). Occultists, interestingly, are divided on the Oujia board's value. Jane Roberts (1966) and Gina Covina (1979) express confidence that it is a device for positive transformation and they provide detailed instructions on how to use it to contact spirits and map the other world. But some occultists have echoed Christian warnings, cautioning inexperienced persons away from it.