I need to let you know that God (or "Higher Power" who designs and projects our dreams through our own minds) does not give us dreams to agree with what we consciously believe, but to shake us up from the deeper sources of our being. And "dying" doesn't really mean dying, though many folk-beliefs assert that it does.
What "you" do think and feel in the dream is not all there is to your personality, but certain Highlights that the Dream Maker wants you to contemplate in the "God's-Eye Mirror."
So Where in your body were you stabbed? And where in your world were you invaded? These thinks happened before you presumed that you were dying. Self-perceived "dying" usually means losing an old self/personality with which you are thoroughly identified, so that seems like literally dying to you. This "you" that is dying seems to be more concerned with dying next to your mother than you are with preserving your own life. Since your mother is initially assumed to be dying too, it seems quite likely that your dream is actually about the psychic experience of the intensely close-up relationship between you and her dying--to be replaced by some other version of it. Since your initial "main aim" was to find her, so you could die together, the dream is showing you that can't stand the thought of being separated from her, even by death, so your "main aim" is undo whatever distance may have grown up between you, since that relationship is the most important one in your whole world.
So your dream shows you being very frightened that she might be dead, or that one of you might have to die before the other--as if you were literally Married Soulmates.
But the dream shows you more about this relationship you've perceived between you and your mother: Namely that "she's more alive than (you were)." So she's not really dying (where in her body was she stabbed?), it's even possible that she has more of a life than you do, a healthier life, or more life outside of the mother-daughter bond which seems to be the most important bond that matters to you.
Your mother may be NOT as much engaged emotionally with you as you are with her, because she also helps you get into the hospital, where they can symbolically bring you back to (mental/emotional) health as a new version of yourself, perhaps as a more grownup woman who doesn't need her mother's blessing and (hospitals in dreams DO symbolize MOR Ethan just being kept alive yourself: That means being brought into a new healthier personality. In this dream there are several indicators that the death that is coming soon for you is the separation from an overly enmeshed relationship with your mother (even without asking you about the present and past state of your relationship with your mother--not even knowing your age, since if you were a preteenager it would be normal for you to think your mother was the most important person in the world for you).
Then there's the second to last action in your dream "I held onto my soul" -- so you have a relationship with your own soul that needs to be considered in the context of separating from your mother.
SO I WANT TO KNOW WHAT IS GOING ON IN YOUR LIFE NOW THAT MAKES IT SEEM TO YOUR UNCONSCIOUS MIND THAT YOU ARE ABOUT TO DIE TO YOUR PRESENT RELATIONSHIP WITH YOUR MOTHER? (And I don't blame you if you HATE this interpretation of your dream, because somehow you have come to believe in this super-close relationship with your mother, even though she is now taking you to the hospital to let you go into a new life of being one with your soul and NOT one with your mother.