So I went to lunch with my mom and sis today and told them about this website and how happy I was able to discuss my non religious beliefs and my sister said I could discuss it with her. She hates religion but believes in God and asked me how I couldn't because I am a nature and animal lover. I said I believe in evolution, it makes more sense to me than all that bible shit. She agreed with me but doesn't quite understand the concept of being agnostic, which I explained to her. It was a good conversation! Mom has dementia so it was hard for her to follow. Poor thing.
Some people define "god" as not an individual but a higher reasoning, divine justice, grand designer, collective consciousness etc. Sometimes it's hard for people to accept that life has evolved and that it comes to an end. It's possible your mum is a little afraid of accepting the apparent purposeless of our existence. The trick is to find/make our own purpose, not for heavenly rewards but in celebration of being alive....and don't accept a big thank you at the pearly gates.
Educating people and helping them to find better and more meaningful lives is one of the most fulfilling things we can do in life, in my opinion. It seems as though you may have given your sister a nice nudge down the road of enlightenment. Good for you. And good on you and your sis for taking care of your mom.
We all come from around 60,000 or so people from the great rift valley in Africa. We also have as much as 2% Neanderthal DNA. When they left the valley one bunch went west and north and became European. Another bunch went east and became Asian and after that Native American and latino.