Star Trek: Deep Space Nine revealed that Captain Benjamin Sisko’s (Avery Brooks) mother isn’t who he thought, and Sisko’s real mother was a Prophet of Bajor. Since the series premiere of DS9, Sisko was pulled in two directions, between his duty as a Starfleet Officer and his growing responsibility as the Emissary, one of Bajor’s religious leaders. Sisko’s true nature and destiny was finally explained in Star Trek: Deep Space Nine season 7, central to which was the identity of Ben’s true birth mother.

https://screenrant.com/star-trek-ds9-captain-sisko-real-mother-sara-explained/