The woman who speaks for the inhabitants of Meridian, a Gamma Quadrant planet that shifts between dimensions, and welcomes the crew of the Defiant in the third-season episode Meridian.
Seltin Rakal is the leader of the small community living on Meridian in the third-season episode of that name. The planet spends most of its time in another dimension, where its people exist as pure consciousness, and returns to normal space only briefly at intervals of sixty years.
When the Defiant's crew witness the world appear, Seltin invites them down and explains its nature. Each return is shorter than the last, and with only a few dozen inhabitants left she is glad of any help in keeping Meridian stable.
She supports the romance between Jadzia Dax and Deral, and agrees when Dax proposes to stay and shift with the planet. The attempt fails because Dax's presence disrupts the transition, and she has to be beamed away as Seltin and her people vanish for another sixty years.