When Oprah shuttered The Oprah Winfrey Show to launch her TV network, OWN, she turned to show creators with one simple yet powerful question. “I see television as I see all of my work: as a service. I really do,” Oprah says in an interview promoting the second season of the hit OWN series Greenleaf. “The number one question for me when I was doing The Oprah Show, to all the producers, was, How do we serve this audience? And now I ask that question of my producers and writers of these series.”

Oprah says she has a specific mission for every show she puts on the air. “As a storyteller, I think the ability to create a narrative that people can relate to, feel a part of and feel connected to is the dream of everybody who uses words to allow people to see and feel their own humanity,” she says.

“I’m trying to nourish the spirit and the soul of anybody who turns on our channel and wants to be entertained. I want them to be fed humor. I want them to be fed drama. I want them to be fed something that’s meaningful,” Oprah says, “and that is ultimately why I have a network and am in the business of creating stories, because I want people to be fed and to come away feeling, ‘That was worth my time.'”

Here, Oprah elaborates on why she’s taken on this mission, and teases some of the themes you can expect to see in Season 2 of Greenleaf.

Tune in for the season premiere of Greenleaf on March 15, only on OWN.