Dreaming of someone or something disappearing signifies a sense of loss or feeling of being left behind. This dream symbolizes the fear of abandonment or being forgotten. It may also reflect a desire for someone or something to vanish from your life, particularly if they are causing you distress or pain. Additionally, this dream could suggest that you are feeling unnoticed or invisible in certain aspects of your waking life. Consider the specific person or object that disappeared in the dream to gain further insight into the areas of your life that may be affected.