The king is laying out his plan for justice in an amphitheater.
The king find out bout the love affair between the princess and a young man, so the king puts the man in prison. The king then finds the most fiercest tiger in his land to use at the mans sentencing .
The young man is in the arena before the king, so he now awaits the princess answer to go to the door since he trusts her.
With no one noticing the princess waved her hand to the right to signify what door for that her lover should take, thus it could end their relationship either way so what she picked for him is unknown. But she hated the woman behind one of the doors.
The end is unknown so its for you to decide with what could happen to the young man will he live or will he die. But to go with what I believed happens its the tiger.
The central idea/theme is every action has a consequence, one of which could be good or bad.