A person who is destroyed has had their body purged from the world. They cannot be revived, resurrected, or raised by normal means. This can be the result of a powerful spell like Destruction, or by other means. Certain extremely powerful spells can circumvent this condition, however, although it has yet to be seen to this day. This is probably due to proper etiquette, however.
After a body is used after death, it almost always becomes destroyed, due to its last life essences being drained completely.