After some investigation, Chu Zheng finally understood the situation.
The Immortal Alliance was so cautious about the remains of these Heretic Path beings because these fragments carried a strong Heretic aura, and they might contain Heretic inheritances.
If one were not careful and brought them back to their own worlds, it could possibly lead to unnecessary trouble. It might not only reveal the coordinates of those worlds but there could also be beings from the Myriad Realms who might directly open spatial passages, bypass the Starry Sky Barrier, and cross into other realms.
The pathway of Incense Fire Deities is the best example; as long as any books about deity legends entered the secular world, many mortals would soon attempt to form Golden Bodies for them and worship with incense.
Once the Golden Body awakened spiritually, for the Incense Fire Deities, they could directly manifest and descend. The trouble that this could cause goes without saying.