May Catholics assist at Spiritistic Seances?

No. In 1917, the Church decreed as follows: “It is not lawful to assist at Spiritistic Seances or manifestations whether with or without a medium, even though such meetings seem to be honest and religious.” Spiritualism claims to be a new religion, and therefore meets with the same fate as all other religions invented by men since the time of Christ. The only true religion is that established by Christ, and in the form in which He established it. It is little use to call oneself a Christian, and reject the Church as Christ built it, accepting any form of religion men would like to substitute for it.

Radio Replies Volume 1 by Rev. Dr. Leslie Rumble MSC and Rev. Charles Mortimer Carty