For a long time, Guilliman questioned why his father had kept the secrets of the warp to Himself. He had fought daemons so many times that their impossibility became normalised. But it was only after his awakening and his exposure to the Cicatrix Maledictum that he truly understood what the Emperor had been trying to do, that these things were not his father’s true enemies, but rather their source was. Revealing the truth of daemonkind would have strengthened them enormously, for men would never have been able to put them from their thoughts.