[PetroniusMaximus]

“And by billions of (relatively) normal people worldwide.”

Not for SPIRITUALISTIC purposes.

[TexasAg1996]

Not for SPIRITUALISTIC purposes.

If you'd read the books, you'd know that the people in the HP books don't use mirrors for SPIRITUALISTIC purposes. They use them like you'd use a telephone or a walkie-talkie. In fact, the one time Harry tried to use a mirror to contact Sirius after Sirius died, nothing happened. Harry couldn't talk to dead people with his mirror.

Please, continue showing your ignorance about the books you've never read.