The mortal systems are so far from other systems that there is no way to get to them without using a rift or certain spells. Only with the advent of rift makers like null mines and teleportation spells did travel to and from the mortal systems become possible.
The mortal systems are very important to the Higher Powers. This comes from the Rule of Divine Goverance which allows them to gain more Divine Power as their worshipper base expands. Interference in these mortal systems by these Higher Powers is kept in check by the Mandate of the Heavens and groups of deities like The Balance.
|Bal-Kriav||Deaths Kindle, Leptyr, Opulent Eye, Urokolon|