It wasn't too difficult for a spatial practitioner to create a teleportation array.
These arrays were merely reflections of their comprehension. The more they understood space, the further they could transmit people.
However, the task did require a slight understanding of runes.
Without the fundamentals of formation theory, the arrays created by these practitioners would be temporary, only maintained as long as they inputted mana into it.
What made a teleportation array a true teleportation array was its ability to be operated by anyone who could provide sufficient energy.
The main method would be through mana and spiritual stones, but the more complex an array got, the more its functions could be controlled
For instance, complex arrays could be set to block certain beings from using them, allow different types of energy while excluding others, or even force unwelcome intruders into spatial chaos in the midst of teleportation.