[quote=@Meta]
<Snipped quote by Codify>

How do souls work, then? What [i]are[/i] they?
[/quote]

Depends on the type. There's souls that are the heart of a spirit, there's souls that are the culmination of a living entity, there's souls like darkloids come from... Generally a soul is a metaphysical core of a being. Rarely there'll be physical ones, but those are incredibly uncommon.