i think that the dream may have been indicative of you (your mind) revisiting
the circumstances of your youth, and specifically your fathers alcohol use.
perhaps you'd made some firm judgments about what and why he'd had that
issue to deal with, and perhaps you're open to reinterpreting some of that now.
in the dream, he'd been taken away without his consent, and the entire
situation may have been contrary to his deepest desires in real life.
[maybe it had been something akin to a kharmic obligation for him to have
passed that way, or to have dealt with addiction at all (?)]