Step 1: Understanding the Concept:
The Pancha Kosha (five sheaths) model describes the different layers of human existence from the material to the spiritual.
Step 2: Detailed Explanation:
1. Annamaya Kosha: The food sheath (physical body).
2. Pranmaya Kosha: The vital energy sheath (breath/life force/energy body).
3. Manomaya Kosha: The mental sheath (mind/emotions).
4. Vijnanmaya Kosha: The wisdom sheath (intellect/discernment).
5. Anandmaya Kosha: The bliss sheath (spiritual core).
Step 3: Final Answer:
The Pranmaya kosha relates to the energy body.