Board Thread:Questions and Answers/@comment-24963288-20190412183516/@comment-29325824-20191020083034

ShellyBelli wrote: but that raises another question: why do all the notable members of the Gotei 13 have their childhood in the Soul Society? Are souls reborn when they die, or do they pass on as they were? and since children can be born in the Soul Society, WHERE DO THOSE SOULS COME FROM?

Souls can be born in Soul Society, yes. And just like how not all newborn humans are reincarnated Souls, those Souls likely come spontaniously into being. Which makes sense, considering Souls condemned to Hell or killed by Quincy are removed from the cycle, so something needs to replace them.

Also, all Souls that die (unless killed by a Quincy) are reincarnated in the human world. That continuous flow of Souls is very critical to the setting.