Trapped Souls

Once a human dies, the connection of the body and soul is cut. Even if their soul is 'detained' by a Parasitus Crystal or through some similar design, the soul cannot naturally return to its former body. Because of this, releasing a deceased's 'soul crystal' is... something of a controversial topic.

One tradition states to keep the soul crystal of a lost loved one as though it were a memento. Another states to break the crystal in a sort of funeral ceremony, in the hopes that their soul may find peace.

There are records that suggest it is possible to revive a dead soul through placing it in a new body--containing some sort of nonsense about 'frequencies' and whatnot. However, due to the age and poor state of these records, it could be simple mythos.