The one thing I always tell people who are greiving: nothing.
I'm just entering the world of grief and bereavement counseling, but the biggest thing I've learned is nothing you say is going to be ultimately helpful. You can't feel what someone else is feeling. Even if you've lost the same person, grief is tricky because it means something else to each one of us. The best thing to do is just listen.
If you do want to say something - start by reading Option B by what's her face. Option B is about grief, resilience more so, but she's a business woman. Life goes on. She bridges the gap between working her ass off and grieving. A lot of books I read make it seem like you have all the time in the world to grieve. Most jobs only give you 12 weeks. Then it's back at it, which can be both a blessing and a curse. But ultimately you have to keep going. You have to take care of business while taking are of yourself and others. practical advice.