Fire is a life principle, just think about the Sun! Fire is creativity and spontaneity in action. Not only it governs four meridians and organ systems instead of two, ALL of the meridians are located on the arms, chest, and shoulder/neck. These are the areas we would explore in the Yin and Restorative postures.
A healthy human being needs warmth, love, joy, and compassion, so this immersion is also about exploring the mental emotional qualities of the Fire element through mindfulness, breathing, intention, yoga nidra and mantra.