But Dr. David Blackburn, assistant professor of psychiatry and behavioral science at Scott & White Hospital in Temple, Texas, said the end of Winfrey's regular show should not cause a sense of loss or withdrawal if viewers have learned anything from her show.
"Oprah probably would not want viewers to think of the ending of the show as a loss since she advocated 'living your best life,'" Blackburn said.
Rather than mourning the daily hour with Winfrey, Blackburn urged fans to use that time to follow through with the many lessons learned from her.
"The extra hour they have each day could be used to volunteer, to read, to teach, to reflect on one's life and how to live it better," Blackburn said. "It could be used to speak with God, to search the scripture, to find contentment in life."
As for Clark, she isn't too worried about Winfrey's departure from her 25-year talk show, which ended Wednesday. She knows that her idol will continue to be buzzing around, whether it is with her new network OWN, or the several charities with which she is involved.
But as a tribute to the farewell show, Clark plans to devote some time to Winfrey and her teachings.
"She's so powerful; Oprah can do whatever she wants and she does," Clark said Wednesday. "Today, I'll probably flip through some of my favorite Oprah books. Maybe today I'll write her a letter and finally tell her about Oprahology."