Osteen believes that the words you speak can become your destiny. "[Negative thoughts] may come to your mind," he says in this clip, "but don't give your words life by speaking them out."
Oprah points out that it takes time and practice to break the habit of "feeding the negative tapes to yourself."
"I do [it] too," she says. "And so when you first catch yourself doing it, you switch it..."
After that, Pastor Osteen leads the audience in a powerful and uplifting exercise that you can try yourself at home. Take a look!
"Oprah's Lifeclass" airs on OWN.