Technology Used in The Host
It is vaguely implied that originally the Souls either relied on hijacked Vulture technology or on those they created themselves for the colonization process. Afterward they might have made use of whatever tecnology the races whose bodies they assimilated used. Once they found the Spiders, a race without much emotion, but with high intelligence in certain other fields, their tecnology received a boost. When assimilating a new planet the Souls abduct a few examples of the race they target and perform tests to develop medicines for use on the hosts.
The main users of weapon tecnology among souls are Seekers on certain planets. The main users of medicinal application among Souls are the Healers and their assistants.
When the Souls assimilated Earth they replaced the medical system with Healers and Comforters and the aeronautics system with a system af Shuttles.
Healer is a Calling, or vocation, and the soul equivalent of a medical professional. Healers are the souls charged with performing insertions. They are also capable of medical feats far greater than what medicine on Earth can provide. Some known Healers are Fords Deep Waters and Knits Fire.
Cryotank is mentioned by Stephenie Meyer in the novel The Host . It is supposed to be a container to preserve the sensitive souls . The souls can not survive long without this in any planet except Origin . Origin is their first planet and the only one planet where 'the souls can live outside of a host for very long.'
This tank is also known as hybernation tank and is used to carry the souls from one planet to another. The souls came to a planet with spaceships and they are kept in hybernation mode there. The known souls who are mentioned in the novel specifically, to be kept in it are - Wanderer, The Seeker, Sunlight Passing Through the Ice and Summer .
Insertions are when a soul is implanted into a host body. Every soul, just before the insertion, goes into hibernation to survive without a host body. A Healer usually operates the insertions.
Known Soul Medicines
Known Soul Medicines
The known soul medicines made for humans are Clean, Heal, Seal, No Pain, Better Morning (for morning sickness, when a human female is pregnant), Sleep, Awake and Peace.