Tsunezo Kanaoya

So, my grandfather died today. He was 94. Ultimately, I didn't know much about him. He was born during WW1. He lived through WW2. He had one son, 2 grandchildren. He wasn't perfect by any means, but he wasn't a bad man. He lived a life and then died.
I'm in a strange state. I feel obliged to feel that this is a big deal for us, but because I wasn't that close to him emotionally, I'm left wondering how to feel. You shouldn't really have to direct your emotions. Anyway, he was my grandfather, he had a great innings, and now he's gone.
RIP
Tsunezo Kanaoya
October 11th 1916 - January 31st 2011