Thank you, everybody. I've spent quite a bit of time in the shop, just piddling with small things. Finished the spindle for my toolpost grinder, but bored the bearing recess in the housing too large. Forgot to measure three times. My wife has been nothing short of amazing in helping me deal with this. She's given me the time and space to get things sorted in my head, and knows just when I need her.
We spent several hours with my brother and his wife on Sunday. Both of us have changed, a lot. We can't get back the time we lost, but the things that drove us apart have been forgiven, and we're slowly connecting again.
Honestly, there is no way to sugar coat this. I didn't talk to my mom for many, many years. I made no effort to keep track of her. That's all on me. Understandably, her family thinks very little of me. I left a lot of things unsaid, I really hurt my mom's feelings, and she hated that my brother and I weren't talking. I never got to say goodbye to her. That is my fault, and I accept that.
But, I know she'd be happy that my brother and I are talking again. Some good has come out of this.