Vessels are characters that have an immortal, fundamental aspect/force of reality inside them. These forces, known as Spirits, have taken mortal form to combat the oncoming assault of The Far Realms. Each Spirit maintains its own primal, fundamental nature. Although it has an agreed upon goal of sacrificing its mortal form to prevent the destruction of reality, it does not necessarily mean that all Spirits approach their duty in the same manner. Each Spirit is different, and, now thanks to The Far Realms, each Vessel is different as well.