Any intelligent life would feel immense pain and torment when it was infected by the Void.
This pain and torture did not only refer to the body but also the soul.
This continuous, seemingly endless pain was mixed with all kinds of strange illusions. Moreover, these illusions would constantly change scenes according to the desires deep in the hearts of the infected. They would bring you the despair of falling straight into the abyss when you were the happiest. And when you were in despair, they would suddenly make you ecstatic. In short, they would continuously play with the thoughts of intelligent creatures and constantly attack the will of intelligent creatures until they completely collapsed. The Void power would then be able to take advantage of them.