Overlord_Venus
So both types of humans have a problem breaking through because they lack what the other has. Then wouldn't that mean that it is much easier for a child of wisdom to breakthrough. Although I am sure having two parasites in two different locations or one parasite that holds power over two of the most important parts of the body, does not make cultivation that much easier. A soul parasite should have the easiest time breaking through because they should be fully capable of controlling how quickly or slowly their parasite matures. Hopefully by Tier 3 Jyorta will be able to initiate his own breakthrough whenever he wants and maybe even figure out how to store memory fragments to use them in case he ever needs to rapidly breakthrough a tier,even if doing so brings its own set of problems.