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Unlike in European culture, In the East the Dragon is considered entirely auspicious and celestial. It is a symbol of the Kundalini, and is often shown chasing a pearl (Sahasrara, the prize of Self-realisation).
The Subtle (Sanskrit 'Sukshma') System of Chakras and Channels reflected in world art through the ages.
The Virgin Serpent is a symbol of the sacred, healing Kundalini energy, and is associated with the Feminine aspect of the Divine.
Read more about the goddess of healing here: http://en.wikipedia.org/wiki/Hygieia