gift or curse?

Since I was a little girl I have always had dreams, then in a day, week, month, even a year later, my dream would come true. I finaly told my mom, I didn't think she would believe me but I found out that my grandmother on my father's side had the same gift. However she knew she was going to die, then that night she died. But is this a gift passed down through the family? I would really like to know.

These dreams also show not only me, but other people that I don't know or have not even met. I can feel the pain or their joy.

What is this? I would really like to know.