What is "mazdaznan"

Mazdaznan is a neo-Zoroastrian religion which held that the Earth should be restored to a garden where humanity can cooperate and converse with God. Founded at the end of the 19th century by Otoman Zar-Adusht Ha'nish, the religion was a revival of 6th century Mazdakism. Adherents maintained vegetarian diets and practiced breathing exercises. Concerned with the nature of thought, emotion and behavior, Mazdaznan taught that the practical aspects of personal health could be achieved through conscious breathing, "Gah-Llama". The word Mazdaznan is said to derive from the Persian "Mazda" and "Znan", and is supposed to mean "master thought".