You can't

I dreamed of death. Death was in my arms. I whispered I love you. I saw death taking over what I loved. I had to accept. I didn't. I woke up in horror.
And then it didn't fade because I knew if things go on like that, I might soon see death, and it already is there. It comes slowly. It hurts.
I realize my nightmare is reality. Like the dream prepared me for reality. I begin to see that dreams are part of my reality. Not the first time I dreamed it. It wil haunt me until I finally don't have to dream it anymore. Whatever that means.

And you can't force people to make a turn if you love them - even when they are heading into personal hell. You see loved ones destroying themselves and sacrificing themselves in front of your eyes. You can't imagine how the world would look without them. First you'd only see darkness, I guess.