Curse of Strahd
Those that Vasha calls “the Blessed” are Barovians that are actually born with souls. When a being with a soul dies in Barovia, that soul remains trapped in Strahd’s domain until it is reincarnated in a newborn. It can take decades for a bodiless soul to find a host, and Barovians who share the same soul over generations tend to look alike. That is why Ireena Kolyana looks exactly like Strahd’s beloved Tatyana-both women were born with the same soul. Barovians who have souls wear clothes with a splash of color or individuality. Ireena Kolyana and her brother Ismark both have souls, as do all Vistani. Strahd periodically feeds on the blood of Barovians who have souls, but he can’t draw nourishment from the blood of the soulless. He can tell at a glance whether a Barovian has a soul or is merely a shell.