The+beauties+she+so+truly+sees

="The beauties (sorrow) so truly sees"= The speaker is talking about sorrow finding things that are not typically beautiful appealing. "She loves the bare and whithered trees" and thinks they are beautiful and the speaker does not feel that there is beauty there. Why would sorrow be glad that the birds are all gone? These things the speaker clearly wants to find beautiful, but sounds like sorrow is not allowing them to.