Fulgrim knowing Guilliman and trying to tempt him with joining slaanesh Guilliman would be expected the extremes Fulgrim loves so much, but it can be joy even of simple things like living a much simpler life. Guilliman would absolutely refuse the standard approach so it comes to messing with the lord of Ultramar dreams idk how psyker power nonsense go.
With Guilliman knowing a sense of peace in his dreams working on a agri world, towing a field caring for farm animals and watching the sun set without any of the pressure of the imperium with Fulgrim doing this for months if not years Guilliman overtime actually getting a sleep schedule in order. Did the emperor give him this as a thank you or just his thoughts craving simpler things, Roboute gets more motivated in a sense to have some sense of peace within the madness.
Only for Fulgrim to pull the rug from underneath his feet, that Guilliman could have this and more no longer worry about the imperium again. The lord of Ultramar refuses and cursing out his silver tongued serpentine brother to wake up in a sweat. Every time Roboute dreams after is still the agri world dream. A temptation he could take at anytime, Guilliman loses a proper sleep schedule now knowing even in his dreams he can’t be left alone and have true peace…the offer to live such a peaceful life is forever tempting….
