Swans
To dream of a swan represents idealism, perfection, or that which is the most desirable. Ideal situations, ideal choices, or ideal outcomes. Everything working out for the best, happy endings, or a perfect relationship.
Example: A teenager dreamed of being attacked by swans. In real life they were very worried about poor performance at school. The attacking swans reflected their ideal view of themselves having perfect grades being threatened by the possibility of getting poor grades.