What does it mean when you dream of your grandmother being raped and dying after being raped?

a few nights ago i had a dream of my grandmother being raped and dying after being raped and this year in july will be the 3 year anniversary of her mothers death and i wanted too know what it ment and i also had a dream about my brother being in the airforce and his plane being shot down and i see myself in tears in the dream saying i just saw him and i wanted too know what it ment ?