I had a dream where my best friend died
Dreaming of someone close to you, like a best friend, can be quite distressing. Death in dreams typically symbolizes change and transformation, instead of a literal interpretation of death.
Perhaps your dream can be interpreted as a fear of loss or separation from something important in your life because you may be going through a major change or transition. It's possible that you are experiencing a deepening of self-awareness and may be shifting away from what you once valued and held dear.
Another interpretation of this dream could be that your unconscious is nudging you into more honest and transparent communication with your friend. Your subconscious may be suggesting that you have unfinished business with your best friend, and that by revealing how you truly feel, you can both move forward in your relationship.