A Bajoran kai of the 22nd century whose ship was stranded for several days in the Denorios Belt, where he reported a vision of the heavens opening to swallow him.
Kai Taluno was the spiritual leader of Bajor at some point in the 22nd century. While he was travelling through the Denorios Belt his vessel was disabled and drifted for several days. He afterwards claimed that the heavens had opened and nearly swallowed the ship, and the account entered Bajoran religious tradition as a vision.
Jadzia Dax turns up the story in the Deep Space Nine pilot, Emissary. Asked by Sisko to find a pattern in ten thousand years of Orb appearances and unexplained phenomena, she notes that Taluno's experience and at least five of the Orb discoveries all cluster in the same region of the belt. The correlation leads Sisko and Dax to take a runabout there and discover the wormhole, which is presumably what the kai glimpsed.
Taluno is never seen.