Yin, the feminine principle: dark, passive, receptive, reflective, withdrawn, cooling, introspective. Yin yoga was developed to penetrate deep into connective tissue expanding flexibility and aiding healing while stimulating the nadis or meridians to loosen energetic blockages and increase energy flow.
Yang, the masculine principle: light, active, outward and upward moving, heating, extropective. Yang yoga is the more traditional hatha-based asana practice that develops muscular strength, stamina, and flexibility.
Yin Yang Yoga is a combination that balances the two, with an active warm up sequence to generate heat in the muscles, followed by gentler, longer-held stretches to increase flexibility. This class can provide you with a practice that starts with an energizing and uplifting yoga series that evolves into a calmer period of deep, introspective, and quiet poses to find that perfect balance of the masculine and feminine.