How do you keep focus when riding in the memory of your mentor, Jill Hassler-Scoop?

Barbara Strawson, a USDF Gold, Silver and Bronze Medalist, has trained and competed horses from USDF Training Level through FEI Grand Prix. The PVDA Ride for Life is both a dressage show and a benefit for breast cancer quality of life research at the Johns Hopkins Breast Center. How do you keep focus when riding in honor of the memory of your mentor, Jill Hassler-Scoop?