There will always be a place in the universe where she's alive and happy. A place that I'll probably never be able to visit but still is immensely comforting knowing it exists.
I guess that's my version of a secular afterlife. Not entirely comforting as all the moments of suffering still exist too, somewhere. But still, it means there's a permanence to even the most impermanent things.
I've become a big believer in this view. A valuable upshot of embracing eternalism is that it makes it much easier not to regret the past or worry about the future, though some believe it encourages risky behavior.
What is not clear to me however is whether a block universe view can still be correct even if non-determinism is true.
I'm not certain if there's a name for it. I figure it's a form of pantheism.
For me, certainly, it's the only thing which makes sense.
You might like the writings of Thich Nhat Hanh, which I probably misspelled.