Portals

Portals are a phenomenon that allows transmission of matter between two points. They come in two varieties that have been named Red and Blue respectively.

Blue:

This type of portal in which people use to travel to and from other locations. Can only be operated by an Ilmatar that has the innate portal capability. The portals were set before the Long Night happened. To access another portal one must have the coordinates. 

Red:

This type of portal is one in which those from other worlds, dimensions, times, realities, come through but cannot return through. Any sentient beings that come through these are commonly known as Elruna.