Welcome to Gaia! ::

My sister's grandma died recently and my sister has been pretty bummed out about it. I want to write her a card to make her feel better, but I just don't know what to say (I have a few ideas, but I'm worried that I will just make her feel worse).

Relevant information:
I met the grandma a couple times. I was too young to really form an opinion about her. I really don't remember much. But my dad spoke of her often and held her in extremely high regards (this means a lot coming from my dad).

Apparently, she was really getting old near the end. She was blind and really couldn't do much of anything. The general sentiment around the family is that while it's a huge loss (she was apparently a really cool person), it was definitely her time to go. Everyone seems fairly relieved that she's dead and didn't drag out her pain any longer.

My sister is not religious. My family tends to feel uncomfortable with phrases like "she's in a better place now" and things like that. It's not that we're offended, it's just that we don't know how to respond. I mean, we can't agree because we don't, but it's extremely impolite to say "well, I don't believe that." So anything religiously-minded is better just left out.

I bought a card. It's the most tasteful one they had. It says "Thinking of you" on the outside and "We know our words can't take away your sense of loss, but we hope that our caring will help to give you strength" on the inside. There isn't too much writing space, so I don't need 10 page essays or anything.

I think that's about it. Any ideas on what I might be able to say? Any suggestions at all are extremely appreciated. Thank you!

I like what the card already says, but if you want to add something, as Wolf said, you could just let your sister know that you're there for her if she needs you for anything.