There have been occurrences in occult history where only the hand of a spirit has only been visible to the human eye. During the reign of James I, a certain clerk that was engaged in writing a will that would disinherit a son saw such a vision. The form of a white hand appeared between the candle and parchment, and cast a shadow over the latter. The appearance came three times, so alarming the clerk that he threw down his pen refusing to complete his assignment.
It is related in the Book of Daniel, “In the same hour came forth fingers of a man’s hand, and wrote over against a candlestick upon the plaster of the wall of the king’s palace: and the king (Belshazzar) saw part of the hand that wrote.”
There are other incidences of writing being done without human hands. A Mr. Wolf, of Ohio, stated that he shook hands with spirits as “substantially” as one man shakes hands with another. After a certain vision, it is recorded that a hand touched Daniel setting him on his hands and knees. A.G.H.
Spence, Lewis, An Encyclopedia of Occultism, New York, Carol Publishing Group Edition, 1996, p. 200