Dhamma Ratana (Jewel of Dhamma) is situated in the OKPO Monastery in Mogok, Mandalay division. Mogok is known as the land of rubies. In 1996 Goenkaji and Mataji gave Anapana instructions for the first course in this centre. From then on, courses are being held here regularly. Accommodations are available for 80 students. Sangha courses (exclusive courses for monks) are also held at the centre, besides 10-day courses, old student courses, and Anapana courses for children.