Shakti (Simone Lehner) a qualitfied biologist, Naturopathist and Yoga Acharya, Maheswara (Manfred Lehner) graduate in Biology, Physiotherapist and Yoga Acharya.  Both are trained yoga teachers from Yoga-vidya, Germany and Sivananda Ashram, India.  Living and running Yoga-vidya centre (www.yoga-vidya.de/speyer) in Speyer, Germany.  Together with Arsha Yoga they conduct the yearly south Indian pilgrimage.