Dreams involving water often symbolize emotions and the subconscious mind. In your dream, the scenario of your dad being in water up to his neck suggests a situation where he might be feeling overwhelmed or in distress. Your inability to help him could reflect feelings of helplessness or a fear of not being able to support your loved ones.

This dream may also highlight your relationship with your dad and your concern for his well-being. It could be worth exploring if there are any recent changes or challenges in your family dynamics that could be influencing these feelings.

To gain further insight, consider reflecting on your current emotional state and any stressors in your life. It might be helpful to communicate with your dad about your feelings or any concerns you have, as this could strengthen your bond and provide reassurance for both of you.