The silver material was a variable—no one was able to predict its future—there was a case where a sage died from it. It could also help a Bodhisattva evolve. It was absolutely unpredictable.
More importantly, its level of involvement was too high and had fairly terrifying secrets behind it. Those related to it don't dare leak these secrets lest their races or even their world be annihilated.
One had to know that legends regarding the silver substance were only recorded in the ten most powerful worlds. It was difficult for outsiders to know.
The ten most powerful worlds had been constant since antiquity.
It could be said that the silver material appearing within Chu Feng was an accident. It was also a danger and destiny he couldn't divulge. Any minor mishap would attract the attention of the ten most powerful worlds.
At that time, the outcome would be unimaginable.