Dream of chased, heart, hugged, injured, training, building

I was in an abandoned building with my brother and my sister and we were chased by something/someone. After awhile i got separated from them and i was alone. I tried to fight off the people trying to hurt me and i got injured. Then i was at a different place. Weak and alone. There was an old man. He took care of me, taught me how to fend for myself. He trained me on how to use my abilities well. I went back to the abandoned building but now, it's crowded by people. And hidden in them are the people chasing me before. I used my abilities and all the lessons i got from the training to fight them off. I almost failed again but the old man was there and he healed me. The people who were chasing me before went after the old man instead of me and i was scared that they would kill him. By this time, i still dont know the identity of this old man. I searched for him everywhere. When i couldnt find him, i went down on my knees and cried my heart out, thinking he mightve been killed by those people. Then i saw my long lost brother, with him, was the old man. He came to me and when i look up at him.. He look so familiar yet i couldnt place him. I wanted to know why he was being so good to me, and why did he taught me how to fight. He cried a little and hugged me. He told me someday i would know and he would never again, leave me defenseless. Afterwards i saw glimpse of us fighting bad people together in a forest and this time, i saw myself saving him instead. Despite all the danger, we looked happy. In that moment, i can see that je was proud of what i had become. Yet, after all the hardship we went through together, i still dont know who he is.