I Want To Know The Meaning Of My Dream

So a while back, maybe 5 months tops, my nana passed away. through the process she went on hospice at her house, however the other night I had a dream she was on hospice at the nursing home I work at.
In the dream she was in no condition to talk, then randomly one day she sang me this good morning song she'd always sing to me as a kid, and then she passed away.
I woke up drenched in sweat and honestly scared/sad. Does anyone know what the meaning behind this might be?😢