When a human dies they are sent to soul society and retain their memories letting them remember their loved ones from the passed life, but what happens to a Shinigami or someone else in soul society when they die? I only just started to think about this when Zaraki killed the previous captain of the 11th Division. I thought, "where did that captain go when he died?" "If he was reborn as a human, wouldn't he just be back to soul society sometime in the future?" Are soul society deaths just unanswered or is Bleach just full of holes?