Animacy and souls question

I want to make sure I get this right- souls in Eora will cycle through the wheel, but animancers can make devices that will USE these souls….

So for example the crucible knights are powered by animacy, so that’s basically someone’s soul involuntarily trapped in a machine to power it? And if this didn’t happen the wheel would put the soul in a new body and they’d have a new life?

Adding off of that- when wizards/druids cast spells the wiki says it uses ‘soul energy’- does that mean it’s ‘weakening’ souls when they cast spells?