Dreams involving death, especially of someone you know, can be quite unsettling. In this dream, your former co-worker's fall may symbolize a sense of loss or change in your waking life. It could represent feelings of anxiety regarding your own career or changes in your professional environment. The sadness you felt upon discovering his death might reflect unresolved emotions about your past work experiences or a fear of losing connections with colleagues.

This dream could also suggest a need for closure regarding your former job or relationships. It’s important to consider how you felt about this co-worker in reality and whether there are any lingering feelings or unfinished business related to your past work life.

To gain further insight, reflect on any current challenges or transitions you are facing and how they may relate to the themes of loss or change represented in your dream.