Dreaming of an indoor zoo with open cages can symbolize feelings of freedom or a desire to explore aspects of your life that are typically contained or restricted. The open cages might reflect opportunities or situations where you feel liberated, but the transition to the animals attacking indicates a sudden shift in your emotions or circumstances.

The presence of tigers, which are powerful and fierce animals, could represent strong instincts, challenges, or threats in your waking life that may be emerging now that you feel more liberated. This could suggest that as you seek freedom and exploration, you might also be facing fears or conflicts that are more aggressive or intense than you anticipated.

The attack from the tigers could symbolize anxiety or issues that you need to confront. It might indicate that while you desire freedom and exploration, there are underlying fears or challenges that you need to address.

Overall, this dream could be urging you to examine areas of your life where you feel liberated but might also need to be cautious. It might be beneficial to reflect on what aspects of your life feel "wild" or out of control and how you can find balance between freedom and safety.