User blog comment:Seieireppa/God Eater:Universitas, chapter 41: Between One and Zero, part 6/@comment-1419424-20150721023237/@comment-1419424-20150721161403

Both are Horizon abilities that certain characters have. You guessed right with illusions though :)

And just wait until the next few chapters. All the Horizon meetings for the remaining characters will be elaborated upon.