This dream could symbolize my desire for a more light-hearted and fun approach to studying and learning. Maybe I feel like I'm too focused on the pressure and stress of exams, and my subconscious is telling me to find a way to enjoy the process more, like how the dog teacher was giving out treats and belly rubs as rewards. It could be a reminder to not take things too seriously and to find joy in the journey of gaining knowledge. The transformation of the teacher into a dog might also represent a need to see authority figures in a more approachable and friendly light. Perhaps I yearn for a mentor or teacher who is not only knowledgeable but also caring and understanding, like a loyal and loving dog. This dream could be a sign for me to seek out guidance from those who are not only wise but also compassionate in their teachings.