She uses some Biblical quotes, but not in a 'religious' way which, I admit, would have turned me off if so. She translates those messages into down-to-earth, usable applications that are understood by anyone whether they are Christian/religious or not.
I much prefer those old time writers of metaphysics and such topics ... as opposed to the Deepak Chopras of the modern age. I know many people like them and have been tarnsformed by their words, but many of them strike me as being commercial, marketed commodities. Florence (I get the feeling she is posthumously more 'famous' than she was when she was alive) just seemed like a down to earth person who went around 'treating' people, writing her books and doing her illustrations of children's books. Her books are peppered with examples of people's lives that she helped to transform - remarkable little stories written in a humble, straightforward way. Quick and easy-to-read.
Recently, as a gift for my youngest sister's birthday, I bought "The Wisdom of Florence Scovell Schinn" - her four books in one (The Game of Life and How to Play It; The Power of the Spoken Word; Your Word is Your Wand; The Secret of Success). Admittedly it's one of those gifts that I ended up reading before she managed to get past a few pages.
Not sure why I'm talking up Florence today. Maybe someone new will come across her and find her 'delightful' (an old-time sounding word which she may even have used). I think the 'treatment' which stuck with me most from my reading of the series is this one: