The Art of Binding

Goetic sorcerers, described in Realms of Power: The Infernal, page 114, have access to the Art of Binding, which could be used to bind a spirit to a ship. In binding the spirit, any power it uses with a Personal range directly affects the vessel it is bound to. If a magus could find a spirit with the power to enter or leave the Magic Realm at will, and foster a sorcerer powerful enough to bind it, the enchanted ship could travel to and from the void at the behest of its captain.

Note that the Goetic Binding Art is different from the practice of Spell Binding, as described in The Mysteries Revised Edition, page 27, widely known across the Order. Spell Binding involves trapping a spirit in a container so that it may power another spell also bound to that container. It cannot force the spirit to express its own powers, nor can the spirit's powers affect the container.