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.
We ought not to use arguments or tedious discourses in giving judgement, much less flatteries, but only to pronounce what is known by experience and firm reason. - Cardan Girolamo (1501-1576)