User blog comment:Bringer18/Ichigo's powers/@comment-5147109-20131029192942/@comment-1747976-20131031010659

I'd like to interject here. The Sword Master informed him that all shinigamis have have a hollow side that manifests in their power and the power of their zanpakuto...hence the possibility of a shinigami becoming a vizard. There is a natural connection between both species as if they were two sides of the same coin. That said, in examining Ichigo's circumstance, it just so happens that a very powerful vasto lorde/Arrancar - type hollow had his power mixed in through the media of his mother with what was already present. White probably seated himself in the base of Ichigo's soul possibly devouring the nascent hollow developing there becoming Ichigo's De facto hollow, biding his time until he could devour Ichigo in totality, which would explain why he always threatened him with devouring him and taking over completely. So, in essence I am saying that originally there would have been a hollow present anyway along with his inherited shinigami powers, according to this theory. However White is present and part of Ichigo's awesome arsenal...