When animals are in my dream, I like to look up the meaning of the Native American totem for that animal.
According to www.legendsofamerica.com... The wolf represents loyalty, perseverance, success, intuition, and spirit.
And then, I would look at how I felt in the dream towards that animal. It sounds like in your dream you felt hurt by it. Were you afraid? Perhaps the
dream means that you have felt hurt by someone who was supposed to be there to protect you, but they hurt you instead. But I imagine the wolf branding
you wasn't that they were intentionally trying to hurt you, perhaps they were trying to protect you by giving you the brand. So perhaps it is to show
you that even though you were hurt, they were trying to protect you the whole time. That's my interpretation of it.
Personally, I'm not certain the dream is connected to your brother depending on how he died. If he was hurt or sick, and perhaps you were fearful of
him leaving, then it would make sense because you might have felt he was leaving you even though you felt he should stay loyal to you by staying
because he is family, but his going still leaves a mark on you that will protect you forever even though it might hurt. But say, if he was hit by a
car out of the blue, I would think any connection was more of a coincidence. But that's just me! Sorry about your loss by the way.
Welcome to the forums by the way. There is a forum dedicated to dreams and interpretations if you want to check it out.