The demands for cultivating the art was why he who should have lived for 5,000 years ended up living for less than a thousand years.
But in that thousand years, thanks to the arduous efforts and sacrifice he had put into studying the chrysalis soul incubation art he managed to materialize his soul and separate a part of it which he incubated in his bloodline.
The decree he formulated before his death, was done on the basis of what he had harvested from that art.
Along with passing the mission from father to son, the memory of that day was passed in word and also in its truest form.
What I told you may have been second-hand information but I think you would believe it if it came from the person himself, my great great grandfather, Tang Niu."