Originally Posted by Kraco
Gon and Killua are, however, one in a million people. If they just forgot the diagram and pushed forward, they'd probably discover there's nothing holding them back and find out Gon's old man is waiting for them beyond such doctrines. In the first place, there's no single technique to purge foreign nen. You can already reject, to a degree, some nen attacks simply by concentrating your own nen to the part of the body getting hit. For all we know, there might be some very simple guru technique of purifying your body from all nen, be it your own or someone else's. Mainstream dogmatic people just would never realise such a thing, being bound by their own rules. It would probably take someone as eccentric as Ging to discover the whole truth.