This one is hard.
I'm thankful for my grandmother.
She passed away several years ago, but I still feel her presence. She often shows up in my dreams, usually when I'm doing something I shouldn't (which is a weird sort of conscience to have, but I like it).
More than dreams, though, my grandmother left her mark writ large in my mind, and in my life. She paid for me to go to college - that's the big one, financially, but not the biggest thing emotionally.
My grandmother was, her whole life, a strong, capable, pragmatic, and compassionate woman, the matriarch of our family and its guiding light. I have endeavored to be like her. I will always endeavor to be like her.
I am immensely grateful that I had her for a grandmother.