Aizen's smile froze. Anyone would have believed what Aizen had just said—that his Zanpakuto's ability was to influence the Reishi in the surrounding air, refracting infinite colors and phantoms to construct whatever one's naked eyes perceived. Because it was not much different from controlling one of an enemy's five senses—the visual sense. The result was the same: seeing something false. What one saw was not necessarily real. But that was merely one category of controlling the five senses—controlling vision.