From the Second Dream - the ytriarch

A boy was stuck, alive in the afterworld with his ghostly ancestors, one of them, the progenitor of his line has identified as male for the sake of onlookers for centuries, but is actually another sex entirely and has, long after death, decided to embrace a gender matching yss sex. In the dream the pronouns were ys (ease) for subject, yn (bean without the b) for object and yss (east without the t) for possessive. The boy's other relatives have been taking pains to hide the boy's status as alive from the ytriarch, but the two bond when the boy is the only one not scandalized by the yss gender identity (there was a sequence where the ghost removes yss clothing and reveals yss naked body to the rest of the family - apparently ys possesses an anatomically distinct sex which is different from intersexuality, female and male, though the dream sort of did not fill in what yss genitals looked like). Apparently, the boy has a friend whose gender is male but sex is female, which he explained to his ancestor after yss reveal and, from inhabiting the boy's head, I know he reacted more to the great apparent age of the ytriarch's body than yss genitals.

One thing that struck me when I woke was how the body or memory of a body was very important to all these ostensible spirits, to the point where the ytriarch points out that everyone has been breathing this whole time, though you would assume they do not need to breathe.