I was banished to a world where everyone I knew was killed.
Dreams about being banished and losing loved ones can indicate a fear of rejection or abandonment. Your dream may be a representation of your fear of losing connections and ending up alone.
It could also symbolize a major change in your life that makes you feel isolated or separated from people you once knew. Maybe the dream is urging you to break free from certain ties or relationships that have turned toxic or are no longer healthy for you.
Alternatively, the dream could be a manifestation of your subconscious fears and anxieties, that could be triggered by past traumatic experiences, current stressors or future uncertainties. A professional counselor may help you explore this further and find ways to cope with your emotions.