Dreamscape (OU)

The Dreamscape is the plane of existence in which the thoughts of all living beings exist.

Description
The Dreamscape is a higher plane of existence that is solely inhabited by the living consciousness. It is implied that the Dreamscape is the dimension on which normal thoughts and dreams exist: if true, this would mean that the Dreamscape is inhabited by the minds of every naturally-created sentient being in the universe, whether they are aware of its existence or not. It is not possible for physical matter to enter this dimension, but powerful telepaths can project mental avatars of themselves into the Dreamscape to explore and influence it as they would a physical plane and even talk to people in their dreams. In its natural state, the Dreamscape appears as a blank white void.

History
When Niflheim disappeared from his universe, Mina Bjork projected her consciousness across the Dreamscape of their world into every timestream to find Nif in case he had travelled backwards or forwards in time. Because Mina was a human time traveller, she made Nif her "constant" in both realities to help maintain the connection between her mind and her body. In 150,084 CMT (Day 76 of The Mazkertis Paradox arc), Nif's entire consciousness slipped into the Dreamscape of the Original Universe (because he was asleep), and Mina found him there. She used her telepathic powers to isolate her and Nif in the Dreamscape so that no-one else could eavesdrop on them.

Nif "awoke" to find himself in the Dreamscape due to Mina's influence. Mina was able to communicate with him, but with the absence of an avatar (because she did not have the mental power to generate one from so far away). Mina explained how she had found Nif and told him her theory that Niflheim's World and the Original Universe were connected by means of a diverging timeline, which if true meant that Nif would have to find a constant of his own in order to safely travel home. This "constant" needed to be present in both realities, so Mina encouraged Nif to look for the Original Universe's versions of their other friends to make them his constants. Additionally, Mina stressed that he needed to return soon to help them survive some sort of apocalyptic event, but was prevented from saying more because Nif began to wake up. Nif's mind was returned to his body and he woke up back in his quarters on the Night of Fire.