Dreams involving large gatherings of people can often represent feelings of overwhelm or a desire for connection. The presence of everyone you've ever met, along with those you don't recognize, may signify your feelings about your social life or a sense of being judged by others.

The search for your dad and daughter suggests a deep concern for your loved ones or a longing for familial connection. Their eventual disappearance could symbolize feelings of loss or anxiety about being separated from those you care about.

The appearance of demons chasing you may reflect inner fears, anxieties, or unresolved issues in your life that you feel are threatening you. This could indicate that you are grappling with personal challenges or feelings of inadequacy.

Overall, this dream could be prompting you to reflect on your relationships and any underlying fears or anxieties you may have regarding your family or social interactions. Consider what aspects of your life may be causing you stress or fear, and think about ways to address these feelings. It might also be helpful to focus on nurturing your connections with loved ones to create a sense of security and support.