Dreams involving loved ones who have passed away often reflect our emotions, memories, and the bond we shared with them. In your dream, playing duck duck goose and being the one making everyone laugh suggests that you hold fond memories of joy and happiness associated with your younger brother. This playful setting at a picnic signifies a time of togetherness and celebration, perhaps representing your desire to reconnect with those joyful moments.

The incident of your brother tagging you and injuring himself may symbolize a feeling of vulnerability or the unexpected nature of life. It could reflect your concerns about his well-being or your own feelings of loss and grief. The spraining of his foot and the dramatic response of thinking he broke it might indicate your feelings of helplessness regarding his passing.

Overall, this dream could be a way for your mind to process your memories, the joy he brought into your life, and the lingering grief from his absence. It might be helpful to cherish those happy memories you shared and allow yourself to feel the emotions connected to your brother. Dreams can serve as a reminder of the love that continues to exist, even after someone is gone.