Cradle of Death

The Cradle of death is equipped with a weapon that can detach the soul of an individual, leaving behind nothing but an empty husk. It is unclear what happens to the spirits that are removed from their bodies but the belief is they join the force and become part of the eternal web that makes up the unseen fabrik of the universe.

During the first Crusade there was a heavy scientific focus and mostly on one's soul or spirit. They wanted to learn what a spirit was composed of and if it had a lifespan. It seems the first hypothesis was that a spirit could never be destroyed, only merge or change. They believed that the spirits were a part of the force, and thus binding all living things together. There are no conclusive decisions made on the subjects and it seems by the time of the Second Crusade interest in the subject had dwindled and eventually research stopped altogether.
  In the third Crusade, after the rediscovery of the Cradle, they focused more on the spiritual side of study. I have found disturbing reports of sentient test subjects in an effort to capture the essence of a spirit. I believe the Templars of the third Crusade wished to find ways of capturing and trapping spirits, most likely in an effort to forever lock away the Sith to ensure their spirits would never return.