Why did Oprah create the OWN network?

Could you elaborate on the motivations behind Oprah's decision to establish the OWN network? What specific goals or aspirations did she envision for this venture, and how did she perceive it as contributing to her overall mission and brand? Was there a particular gap in the media landscape that she sought to fill, or was it more about creating a platform that aligned with her personal values and vision? Furthermore, how did she envision the OWN network evolving and impacting audiences in the long term?