Long before, Samsara had already reached a limitation.
Both the life and death that constituted it had reached the limits under the influence of the Great Divine Power, leaving only a minor critical point stuck there. But Laine was equally aware that this point could not be completed by the accumulation of quantity alone; it needed an opportunity as well.
This opportunity was not about piling more Source Power related to life and death inside it, but rather a certain event or node with enough symbolic significance. It must be relevant to both life and death, not just one or the other.
Fortunately, this problem was not as difficult as imagined, and would be resolved at the end of the third epoch.
Therefore, the major portion of the power within this Book of the Undead was directly invested into the Elemental Plane of the fifth layer of the Spirit Realm, leaving only the essence within Samsara.