Past mortician in family

What are your thoughts on morticians and the spirits of the persons they work on following them ?

I ask because my sister was a full on mortician before her death in 2018. Embalming to running the service, everything. That being said. Her ashes are up stairs in my mother’s room/ her old room.

I’ve experienced .. situations my whole life with both my sisters. But I almost feel like there’s mimics or forces blocking my normal line of sight to the other realm. And more activity, my mother being full on brainwashed by the church doesn’t help either.. with her negative and judgemental mindset.

Maybe I’m just assuming such? But do the ones that followed her while she was in flesh and blood.. still linger around her remains ?