Is There in Beauty No Truth?

Zero makes contact with Ion, another Medusan, who offers to give Zero a new body. Gwyn convinces Dal to help Zero and the group detours to Ovidia IV. They discover non-corporeal beings who use the planet to create physical bodies with a sense of touch, smell, and taste. Zero agrees to the transfiguration and participates in the Feast of Senses. Dal and Gwyn learn that their bodies degenerate outside Ovidia IV, and that Zero is participating a fearful and possibly deadly ritual, the "Running of the Nazamon." They find Zero and tell him the truth. Dal is snatched up by the Nazamon. Zero jumps to Dal's rescue. They ride the Nazamon to safety and Zero decides to risk leaving Ovidia IV. Janeway, the Doctor, and Tysses discover the holographic imposters and Gwyn's hologram tells them about the message she received.

Summary from Wikipedia, CC BY-SA 4.0.