Shen's SS and the Vastaya

It appears Shen does have a connection to the Vastaya for this line in Xayah bio there is this line: "The haunting melodies transported her to a long-forgotten time, when the spirit realm danced freely throughout the physical world" And feel free to correct me if I am wrong but ain't Shen kinda connected to the Spirit world (or at least his sword). I don't think it means that he is a Vastaya since this is a tradition in his family to keep them separated but might mean that Shen and Xayah might be in odds no?