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- Peronquerco Cave has gained a reputation for its connection with the spirit world
- According to a new study, it all comes down to a unique echo in the cave
Every year, thousands of brave visitors venture into a cave in Finland in the hopes of “talking to the devil.”
Peronquerco Cave – or Church of Satan in English – is located in Kuli National Park and has gained fame for its alleged connection with the spirit world.
Now, researchers from the University of Eastern Finland have revealed why visitors claim to “feel the presence of a spirit” inside the cave.
According to experts, it all comes down to a unique resonance.
“When a researcher hears sounds as resonance, people in the past may have felt the presence of a spirit, and a shamanic practitioner may have felt the presence of extraordinary energy, each depending on his or her background,” said Rita Reinio and Elena Hyttonen. ng.
Every year, thousands of brave visitors venture into a cave in Finland in the hopes of “talking to the devil.”
Peronquerco Cave – or Church of Satan in English – is located in Kuli National Park and has gained fame for its alleged connection with the spirit world.
Pirunkirkko is a Z-shaped cave that is only 111 feet (34 m) long.
In ancient folklore, the cave was known as a place where local wise men met to commune with the spirit world.
In particular, a man known as Kinolainen regularly used the Church of Satan to conduct magical rituals.
“According to folklore, Kinolainen would take his patients to ‘church’ to talk to the devil about the causes and cures of their illnesses,” Ms Renew said.
“This type of healing ritual often involves loud screaming, stomping, shooting, and beating.”
In their new study, the researchers set out to explore whether the acoustic properties of the cave could help explain the beliefs associated with it.
Peronquerco is a Z-shaped cave that is only 111 feet (34 m) long
In ancient folklore, the cave was known as a place where local wise men met to commune with the spirit world
An analysis of the cave revealed that it contains a distinct resonance phenomenon that amplifies and prolongs sounds at specific frequencies.
According to researchers, this phenomenon is caused by a standing wave between the smooth parallel walls of the cave.
This generates a tone at the cave’s natural frequency – 231 Hz – which remains audible for about one second after sounds such as clapping, drums or explosions.
As part of the study, the team interviewed and recorded a modern-day shamanic practitioner who uses the cave to perform rituals.
“The practitioner said in the interview that the drumming sessions, especially in the back of the cave, opened ‘new horizons,'” the team explained.
“We recorded the shamanic practitioner and found that they emitted repeated tones at a frequency of 231 Hz, which were then amplified by the cave at its natural frequency.”
While resonance is common in buildings, it is rare in natural environments – largely due to the lack of solid, parallel surfaces.
For this reason, the researchers suggest that the subtle resonance in the cave may prompt visitors to feel as if they are feeling a spirit.
(tags for translation) Daily Mail