It is rumored that only one person has ever experienced it and that it happened hundreds of years ago.
But because the story was so old, people considered it a myth and a bedtime story, and no one believed it at all.
When a spirit practitioner reaches the peak of their strength level, then that spirit practitioner needs the spiritual energy of the spirit stone to make a breakthrough to the next level.
The spirit stone used must be by the strength of the spiritual practitioner, in this case, the guardian spirit.
For example, a spirit practitioner of the mist sect, generally people know that the guardian spirit of the mist sect is a dragon.
And if one had a dragon guardian spirit, then the spirit stone one needed was a spirit stone that was able to increase the strength of one's dragon, a spirit stone that was able to augment and support the power of that protective spirit.
And the same applies to other spiritual practitioners.
