chapter 193 Yin spirit body apprentice ===

Shawn Parisch began to teach, "Actually, the human brain is equivalent to a radio. It can receive external signals at any time and anywhere. These signals are transmitted into the brain through the five senses, but in addition to the five senses, there is another signal that is similar to radio waves. The way it reacts with the brain. One type of this kind of radio wave is what is commonly known as a ghost."

"Then why can't we usually sense it?"

Felicia Cook frowned thoughtfully.

Shawn...