Good Morning, what a great SIL you have. The book sounds very interesting and I am glad you are finding it helpful.
I, too, will be looking into it.
The one that has helped me most this spring is Practicing The Power of Now by Eckhart Tolle. I struggle with morning anxiety which comes and goes but right now it seems to be with me every morning.
Hope all is well with you.
and Heart/Cardiovascular Disease. "She Stood in the Storm & When the Wind Did Not Blow Her Away, She Adjusted Her Sails."