If you feel you may be suffering from speluncaphobia (fear of caves, akin to feeling trapped) and would like to use cranium meditation and breathing techniques to overcome anxiety, here's a guided meditation that can help:

Find a quiet and comfortable place to sit or lie down. Close your eyes and take a few deep breaths to relax your body and mind.

Acknowledge and accept your fear of caves without judgment. Understand that it is a normal response, and you have the power to work through it.

Begin by focusing on your breath. Take slow, deep breaths, allowing your abdomen to rise and fall with each inhale and exhale. Feel the air entering your nostrils and filling your lungs.

As you continue breathing deeply, imagine a sense of safety and comfort enveloping you. Visualize a protective shield or cocoon forming around you, creating a safe space where you can explore your fear.

Now, visualize a cave in your mind's eye. Instead of feeling fear or anxiety, approach it with curiosity and a willingness to face your fear.

With each inhale, imagine breathing in courage and strength. Feel these qualities filling your body and mind, empowering you to confront your fear.

As you exhale, release any tension or negative emotions associated with the fear of caves. Allow your breath to carry them away, creating space for calmness and tranquility.

Begin to visualize yourself standing at the edge of the cave. Take a step forward, reminding yourself of your inner strength and resilience.

Slowly lower yourself into the cave, maintaining your focus on your breath. With each breath, feel a growing sense of comfort and safety within the cave.

As you sit in the cave, observe the texture and sensations of the earth and water. Notice any discomfort or fear that arises, but continue to breathe and remind yourself that you are safe.

With each breath, imagine yourself becoming more grounded and connected to the cave. Embrace the sensations and remind yourself that they are manageable and temporary.

Stay in the cave for as long as you feel comfortable, continuing to breathe deeply and cultivating a sense of calmness and acceptance.

When you are ready to conclude the meditation, slowly bring your attention back to your surroundings. Take a moment to reflect on your experience and acknowledge any progress you have made.

Remember that overcoming fears takes time and patience. If you feel overwhelmed at any point during the meditation, take a break and return to it when you are ready. With consistent practice, along with exposure therapy and seeking professional help if needed, you can gradually diminish the anxiety associated with caves and develop a greater sense of peace and control.