Watch a sneak preview of Oprah's interview with best-selling spiritual author Debbie Ford under the oak trees at her California home. For the first time, Debbie will reveal a dark secret she's been keeping for 10 years. Plus, find out how to confront your own past with Debbie's film The Shadow Effect. By watching the film and taking the journey to explore your shadow beliefs, Debbie says, you may experience more happiness than you could ever imagine.