That is a wonderful quote.
After loosing my hubby I read a lot of spirituality related things,but I had a particular interest in crystals as he had done. as part of the funeral we had given a large crystal to main family with instructions to hold it and fill it with our happiest memory's of him.We then split it and gave a piece to everyone who wanted one who came to the funeral.
So this particular day I was browsing books in a shop when a song came on from the funeral.I froze , what to do run from the shop to hide my tears ,running wouldn't take the song out of my head and there were more people outside than in,so I stayed and picked up a book so I could keep my back turned,I opened it.to look like i was reading but in reality couldnt see the words.When I went to put it back on the shelf I saw the title "sacred stones" so bought it.The writer collects stones when she travels or finds herself unsure or wants to remember a particular moment and I have been doing the same ever since.Recently i fell into a river and was struggling to get out panicking a bit as my rucksack was pulling me under,but right next to me was a huge lump of quartz and seein it calmed me down enough so i could .
So actually your idea that the book was there for a reason is not outlandish to me at all.
Sadly not sleeping and increased anxiuty about others in the familly is part of grief.My daughters are in their Thirty's and that still applys.The eldest is abroad so not so easy to know what she is doing all the time,but the youngest is closer to here she can't drive anywhere without me demanding a text to let me know she is home poor girl.