In general, if you are not a part of the dream, it signifies that you want to witness the change that you want to see or that you do not want to be a part of it because you do not believe it is appropriate to do so. For example, if you are dreaming that you are a famous singer and you do not want to be a part of the audience, then it would be appropriate for you to sing along with the singer on stage because you are there to watch them perform. If you are the main character in your dream, this means that you will experience the change first-hand. You will be able to help bring about the result that you desire because you are a part of it. For example, if you are a famous singer and you do want to be a part of the audience, then it would be inappropriate for you to sing along with them since they are not aware that you are there. Instead, you should wait until their performance is over before you join them on stage. Being the main character in your dream also means that you will have responsibility for what happens next. If anything bad happens to the main character, this will affect you too. For example, if the main character gets injured in your dream, then you may get hurt too. This is because you are connected to them in some way; therefore, any injury that they receive is also an injury for you.