The Yellow River God, named Feng Yi, was once human but later achieved Dao by consuming the Eight Stones.
The Eight Stones, as the name implies, are eight types of stones.
The precursor to the Dao of Alchemy was the practice of consuming substances. Ancient sages discovered that certain materials had beneficial effects on the body and thus dreamed of achieving immortality through consumption.
Of course, this path was extremely tough—ninety-nine percent of practitioners were poisoned by pills, with only a few achieving immortality successfully.
In Song Lin's view, they merely stumbled upon success by chance.
This so-called idea of consuming mica, magnetic stones, or sulfur might have resulted from the combined medicinal properties forming something akin to the pill's potency within the body, allowing them to achieve immortality.
Later generations sincerely believed that consuming such items could lead to immortality, which caused the deaths of many.
