The Kadi were a humanoid species native to the Delta Quadrant, considered very conservative and strict in their indulgences by Federation standards. The Goddess Mother was a religious figure they worshipped.
In 2375, the USS Voyager visited a colony of this species, where they had a diplomatic meeting with them. Captain Janeway and Lt. Commander Tuvok, in full dress uniform and wearing a sash of the United Federation of Planets, beamed down to their planet with the Abbot. At the same time, a Kadi monk, Tomin, was to explore the cultural aspects of Voyager. In Kadi society, males and females worked separately, so Ambassador Tomin found the females aboard Voyager stimulating. (VOY: "Someone to Watch Over Me")