A portal is a supernatural means of travel between two areas, often to other dimensions, like these that leads to the Umbra or the Dreaming. Some are called Rivergates, Sun Trails or Byways. Some Blights have portals to Scar, and most Hellholes have portals to Malfeas. They are often invisible, but can be seen with mystic means such as the level 2 Kuei-jin ritual Behold the Spirits' Doorway. Some must be opened with specialized means, such as the level 4 Kuei-jin Rite of Supplication.