I can offer some general insights.
It's not uncommon for therapeutic techniques to involve the use of soothing and supportive materials, such as voice messages, to help clients cope with emotional distress, including nightmares. Therapists may use various methods to provide comfort, reassurance, and a sense of safety to their clients.
Crying is a natural emotional response, and it's entirely normal to feel moved or emotional when receiving support from someone, even if it's through a voice message. Expressing your emotions and allowing yourself to feel vulnerable can be a part of the healing process.
If you find that the voice messages from your therapist are helping you with nightmares and providing comfort, it could be a positive sign that the therapeutic approach is beneficial for you. It's essential to communicate your feelings and experiences with your therapist so they can understand how you're responding to the treatment and make any necessary adjustments.
If you have concerns or questions about your therapy sessions, it's best to discuss them directly with your therapist. They are the most qualified person to help you navigate and address any emotional responses you may be having.
Remember that seeking therapy is a courageous and vital step towards self-improvement and well-being. If you feel overwhelmed, don't hesitate to reach out to your therapist or a mental health professional for support and guidance.