I dreamed that the photo of an old friend fell down and my dream came true.

Photos represent images, and upside-down and crooked images no longer occupy an important position in your mind. Being unhappy means being unfriendly to you and useless to you.

Photos represent the image of others in your mind and some beliefs related to them. If you fall, it means that this belief in your heart has been hit. If you are busy trying to straighten it, you want to adjust your mentality. If it is not straightened, it is difficult to adjust. The way you look in the photo represents the state of this belief in your heart. If you are unhappy, it means that this belief has been hit in your heart and is in a low state.