Do you feel guilty?
I think the image of your father you described is understandable. A person who has been dead for many years should be like this. Yes, "white skin, like a dead man in a ghost film" (dear, your father is really dead, not "like").
If you're worried about something, I don't think it's necessary. He is your father, and you should miss him. I understand your dream as that you want him to come back to life, but you know it's impossible.
That's all.
What's said upstairs is also reasonable. Burning some paper money according to our custom is also a way of mourning.
Be kind to the living. . .