Gen Lingpur of Tara Mahayana Buddhist Center gives a talk at 1 p.m., Saturday, May 21, at Barnes and Noble (7325 N. La Cholla Blvd.); and at 1 p.m., Sunday, May 22, at Barnes and Noble (5130 E. Broadway Blvd.) Free. Call 441-1617, or visit meditationintucson.org for more information.