Upon seeing the female ghost, Wei Huo believed that the appearance of the fifth level was initiated by the heart. Perhaps subconsciously, female ghosts were either wearing a red dress and had their hair down or were like palace maids dressed in a qipao who appeared in hauntings in the Forbidden City.
Wei Huo understood that the fifth level of Qi Cultivation came from the heart!
He knew that human consciousness was divided into two types. If the fifth level was related to the heart, it would not only be influenced by the consciousness but also by the subconscious.
Psychologists often used the tip of the iceberg to describe the relationship between awareness and the subconscious. They described the subconsciously-hidden part of the iceberg as the tip of the iceberg.