In the five-hundred-and-eleventh billion year, you successfully fused four Dao Principles with hardly any effort.
As it turned out, your guess had been right. To fuse the power of multiple Dao Principles while condensing a Dao-Principle Body, you needed sufficient physical body and Soul Power to support it.
You realized why, throughout all these years in the Chaos Sea, only cultivators above the Venerable Realm attempted the Dao Integration process.
That was because after breaking through to the Venerable Realm, the Dao Fruit they condensed could nourish their physical body and soul, and its efficiency was far greater than painstaking cultivation.
After all, no one could spend fifty billion years tempering their physical body and soul like you had.
You began to continue fusing Dao Principles.
In the eight-hundred-and-sixty-seventh billion year, nearly one-third of the branch Dao Principles of the Great Dao of Saber Techniques had been fused together by you. However, after reaching this point, the strength of your physical body and soul that you had tempered over the previous five hundred billion years was no longer enough to support the fusion of new Dao Principles.
You stopped the fusion process and began further tempering your physical body and Soul Power.
Perhaps because you had fused a sufficient number of Dao Principles, you could now clearly sense how much physical and soul strength was needed to fuse another Dao Principle.
Thus, you began cultivating methodically.
Whenever your physical and soul strength became sufficient, you fused another Dao Principle.
By repeating this cycle, you could also make better use of your Demon Lifespan.
Even so, as you watched your Demon Lifespan tick down rapidly, you could not help growing worried, somewhat afraid that more than one hundred billion years of Demon Lifespan would not be enough to support you until