Dreams involving family events can often reflect your feelings about family dynamics and relationships. In your dream, the resort setting may symbolize a desire for relaxation or escape, contrasting with the tension created by your aunt's behavior. This could represent feelings of embarrassment or inadequacy in social situations.

Your deceased father appearing in the dream might indicate unresolved feelings or a longing for his support and guidance. His lack of defense could symbolize feelings of abandonment or disappointment in not receiving the support you need from loved ones. Yelling at him may reflect your frustration over these unresolved emotions.

Your younger brother's sadness could represent your concerns about family harmony and the impact of your father's absence on the family unit. It might also signify your protective instincts towards your brother and a desire to maintain family connections.

Overall, this dream may highlight feelings of vulnerability, a need for validation, and the importance of familial support. Consider reflecting on your current relationships with family members and whether there are any feelings that need addressing. It could also be helpful to communicate openly with family about your feelings and seek the support you need.