Dreams involving family members, especially siblings, can often reflect deep-seated emotions, conflicts, or concerns in your waking life. In this case, your dream may symbolize feelings of guilt or anxiety about relationships and the bonds you share with loved ones. The request from your brother and your strong reaction might indicate a boundary that you feel strongly about, which is important for your emotional well-being.

His sudden illness in the dream could represent a fear of loss or a worry about the consequences of your choices. It’s common to feel responsible for the well-being of family members, and this dream might be a manifestation of your subconscious grappling with those feelings.

Consider reflecting on your current relationship with your brother and how you feel about your connection to him. This dream might also encourage you to explore your feelings about boundaries and the importance of asserting them, even in close relationships.

If you continue to feel guilt or discomfort after this dream, it may be helpful to talk about these emotions with a trusted friend or a professional who can help you process them.