What dream does arthur have in le morte d'arthur?

In "Le Morte d'Arthur," Arthur dreams of being attacked by a group of monstrous beasts that symbolize his fears and the chaos threatening his kingdom. The dream foreshadows the impending betrayal he will face, particularly from his illegitimate son, Mordred. This haunting vision reflects Arthur's internal struggles and the looming collapse of his ideals and reign. Ultimately, it serves as a pivotal moment that emphasizes the tragic nature of his fate.