"Wonders have a very spirit-stirring effect on the history of every religion founded on miracles, but occultism is not a pursuit which people can safely take up in obedience to the impulse of enthusiasm created by witnessing a display of extraordinary power. There is no absolute rule to forbid the exhibition of powers in presence of the outsider; but it is clearly disapproved of by the higher authorities of occultism on principle, and it is practically impossible for less exalted proficients to go against this disapproval."