Board Thread:Theories and Speculation/@comment-1512913-20161122142914/@comment-4912646-20161125005901

FF-Suzaku was just passing along information he got from various blogs and the Japanese wiki. It's entirely possible that false or rumoured information was included on said wiki, or that "Energy Vessel" was a term invented by Japanese fans because they needed something to call the Byakugan cluster to differentiate it from Toneri's eyes. But it's also possible that the term is used later in the book or the translator just translated it differently (though I haven't seen a similar term so far). We probably won't know for sure until the novel is fully translated.