This book focus on the study of overwhelming scientific evidence that supports the germinal role that Zoroastrianism played on Chinese religions and its philosophical varieties. The contributions of Sogdians, Parthians and Bactrians to this process is studied and a special emphasis is applied on the attributes of some of their major deities: Guan Yin, as a representative of Chinese Buddhism and Seraosha, as a sacred traditional Zoroastrian figure.