A Ming dynasty (1368-1644) text on the topic of Buddhist implements has the following reference to ju-i: "Pointing East and West, never leaving my hand, you rely on me for a mind, while I rely on you for a mouth."
明朝記載法器的《佛奴》就頗有禪意地說如意是：「東指西指，常不離手，爾藉我心，我藉爾口。」