A young girl is locked into a castle and is guarded by a dragon. Everything around the castle is overgrown with thorns. The young girl is sleeping.
A young man, a brave knight by the way, makes his way through the thorns, defeats the dragon, kisses the heroine awake and leaves with her.
The dragon is the mother, the thorns the heroine’s deterrent behavior, her sleep her passivity and the knight her future boyfriend.