Packing in a dream usually marks a transition already underway -- deciding what to bring forward and what to leave behind as one chapter closes and another opens. Struggling to fit everything into a bag can reflect unfinished business you're not quite ready to set down before you move on.
Don't demand harmony from Mars nor fracture from Venus; be rigorous on this and never divert a celestial body from its path. - Picatrix (Andalusia, ~1000.AD)