In fact, we live in a world inhabited by invisible spirits.
These beings are neither the dead nor the living; they are others who coexist with us in this world.
Likewise, they cannot see us, and in certain special situations, we might glimpse them, and they might glimpse us.
It's literally two entities living in the same space.
Although it may sound crazy, we can't cross over into this other world, but we've created special shoes that allow us to see it.
These shoes are made of conductive copper and are designed to deliver a specific amount of electricity to the human body over a set period.
Wearing these shoes and receiving the designed amount of current allows our minds to briefly cross over into this other world for an hour.
While it is impossible to interact with the people of that world in this state, chosen individuals can communicate with them