Oprah sits down with Reverend Al Sharpton for an open and revealing conversation about race in America, how his role as a civil rights activist has shifted and the moment that changed his life. They also discuss his new book, “The Rejected Stone,” what drives him to stand up for causes he believes in and his dramatic weight loss.

Later, his daughters Ashley and Dominique join the conversation in their first interview together to share their perspective on how their father has shaped their lives and their plans for the future.

In the exclusive clip above, Sharpton discusses the moment he knew he wanted to become a preacher, at the tender age of 4.

Reverend Al Sharpton on “Oprah’s Next Chapter” airs Sunday, November 17 at 9 p.m. ET/PT.

(Photo: Courtesy of Harpo Studios, Inc./George Burns)