Your dream appears to reflect feelings of anxiety and a sense of being overwhelmed, particularly in social situations. Being at a festival—a place typically associated with joy and celebration—might symbolize your desire for connection and enjoyment, especially with the girl you like. However, her sudden disappearance could represent feelings of uncertainty or fear of losing someone important to you.

The inability to understand others around you may signify feelings of isolation or confusion in your waking life, possibly related to communication issues or social anxiety. The loud festivities could amplify this sense of chaos, making it harder for you to find clarity or comfort.

The imagery of shredded cabbage filling your mouth could symbolize being overwhelmed by your emotions or thoughts, making it difficult to express yourself or communicate effectively. The relentless nature of the cabbage may suggest that these feelings or issues are persistent and hard to manage.

Overall, this dream might be encouraging you to confront your fears about communication and connection. Consider reflecting on your feelings toward the girl you like and whether there are underlying anxieties that you may want to address. Engaging in open conversations with her or others about your feelings could help alleviate some of the tension you experience in social settings.