Parents' Displeasure
Scholars have said that if someone sees their parents displeased with them in a dream, it indicates God's displeasure with them. It has been narrated in some traditions that God's pleasure is linked to parents' pleasure, and His displeasure to theirs, emphasizing the importance of honoring them.
Per Ibn Sirin's Muntakhab al-Kalam fi Tafsir al-Ahlam