THE DREAM - In my dream, one of my friends was watching me and my opponent duel.

THE REALITY The dreamers friend was someone who could relate to as they both had difficulties with their family

DREAM INTERPRETATION When we talk with someone about a particular problem they witness the events as if they had happened. So when the dreamers friend watches him struggle with his opponent it symbolises how this friend was a witness to his feelings.

Symbolic Meanings
DUEL : "the dreamers real life struggle with his family"
WATCH : "witnessing - understanding how someone thinks "

DREAM MEANING The dream captures the following feeling within the dreamer - "I have been talking a lot with my friend about my family and how we continually argue. I think he understands how I feel now. He understands well because he has the same problems with his family"

See how the Symbolic meanings weave together to form a key insight