“The phenomena are actually witnessed, mysterious in their nature – generally and perhaps wrongly termed spiritual – it is now idle to deny.
Allowing a large discount for clever fraud, what remains is quite serious enough to demand the careful scrutiny of science. “E pur se muove”, the sentence spoken ages since, has passed into the category of household words. The courage of Galileo is not now required to fling it into the face of the Academy. Psychological phenomena are already on the offensive.”
H. P. Blavatsky
The Mark Of God: Understanding Your "I AM Presence" 