When dreaming of an ex-colleague, it symbolizes unresolved feelings or unfinished business related to your past professional relationships. This dream may suggest that there are unresolved issues or unresolved emotions tied to your work experiences or interactions with this particular individual. It may also indicate a desire for closure or a need to address any lingering conflicts or unresolved matters from your past work environment. Alternatively, dreaming of an ex-colleague could represent nostalgia for a previous job or a reflection of qualities or traits that you associate with this person. Consider the specific interactions, emotions, and dynamics within the dream to gain further insight into its meaning.