Chen Xiaobei's worry was not unfounded.
First of all, the rift to the great void used to exist in high-level planes that were not lower than the heaven realm. Those who could enter the rift to the great void were basically Almighty beings of the heaven realm.
Secondly, the environment in the rift was very harsh. Rahu and Taiyi had told him that Chen Xiaobei needed to have at least a peak earth-God's body to enter.
One could only imagine how powerful the ancient void tribe that lived within it was! The newborn baby must have the body of a peak earth level deity. Otherwise, it would not survive!
Combining these two points, Chen Xiaobei could see that there would be powerful beings that he had never seen before in the rift, bringing him unprecedented danger and obstacles.
There might even be some powerful demons and ghosts that could not be measured by human strength.