Viet Folk Beliefs - understanding hồn / vía / khí / thành

Viet kieu here, i’m wanting to understand more about viet folk/spirituality and would deeply appreciate any shares on your understanding of the below?

According to Vietnamese folk beliefs, people have two groups of souls: the hồn (psyche) and the vía (astral). The hồn refers to our spiritual souls and can be further branched into the tinh (perception), khí (the energy flow that mechanisms the body), and thành (life force).

The vía refers to our physical souls—the integral link between body and soul. Men have seven, women have nine. These describe our anatomical, biological channels of seeing, being, receiving, giving—our eyes, nostrils, ears, mouth.