The following teachings take place at the following times and places: "Yamantaka Empowerment and Meditation for Purification" takes place from 9 a.m. to 6 p.m., Friday, Feb. 12, at the Tucson Shambhala Center (3250 N. Tucson Blvd.). "Medicine Buddha Empowerment and Meditation for Health" takes place from 9 a.m. to noon, Saturday, Feb. 13, in the library of the Little Chapel of All Nations (1401 E. First St.). "Amitayus Empowerment and Meditation for Long Life" takes place from 2 to 6 p.m., Saturday, Feb. 13, in the library of the Little Chapel of All Nations. "Tibetan Yoga to Improve One's Practice" takes place from 9 a.m. to 6 p.m., Sunday, Feb. 14, in the library of the Little Chapel of All Nations. By donation. Call 762-6707, or visit www.dharmakirti.org for more information.