As the heavens themselves began to stir, people of the Medicine World began witnessing what was about to happen.
The phenomenon was so strong that even mortals could tell something was happening in the sky. With their limited lifespan, a mortal had no way of knowing what was going on. They never sensed anything before, so they chalked it up to being something to do with cultivators.
The ones with weaker cultivation bases, especially in the Self-Tempering and True realm, mistakenly believed the phenomenon to be somebody breaking through to immortality close by.
The ones with a cultivation base higher than that had a different view on things. This phenomenon, from their understanding, was most certainly created by someone learning a strong Dao.
Whether it be Saint realm cultivators, Immortals, or even many Divinities, they did not realize it was something very much different.
Very few could see it for what it was.