VANCOUVER, B.C. - I remember with absolute clarity the most emotional moment I have ever experienced in the theatre. It was in the 2001 Vancouver Playhouse production of Margaret Edson's stunning play. Joy Coghill, played E.M. Ashford, 80 year old Professor Emerita of English Literature and Seana McKenna played Vivian Bearing, once Ashford's most brilliant student, now a 60 year old Professor of Seventeenth Century Poetry, totally dedicated to her work, socially isolated, and terminally ill with ovarian cancer.