The Demon's Gate Invocation is a magical ceremony that was designed to invoke and summon the Meta-God and/or other supernatural entities to the Earth. This ritual attempted by the Taoist warlock Dehuai and thwarted by Ben Hyuga and Li Zhuzhen 15 years before the start of the first Shadow Hearts game. Desperate to protect Shanghai from the Japanese, Dehuai planned to summon a god to annihilate them and neturalize any future threats. Dehuai mentions that powerful earth spirits are summoned by the Demon's Gate Invocation when he was telling Yuri and his friends about his real plans.