The Darlanians do not have travel as you know it, preferring instead to remove their consciousnesses from their bodies, and witness the world from a purely mental point of view.  As ghost-like apparitions, they will be very interested in your dependence on your physical body, and may attempt several ways to remove you from it.  It will be important to remember that the “body dematerializer device” that they will try to put you in does exactly what you might expect.