I'm not sure what you're quoting. Even if I take this as Part of Spirit, it speaks of faith (which is namely the power of your own will to move mountains believing it's possible, aka the Bible) and not of any religions, divinations, etc. There is a big difference between faith and all spiritual exercises people love to pursue. As the quote rightly points out, the inner health is also a result of the existential power and quite well known by modern medicine - by the will and its power. It also speaks of intentions which is namely what I tried to translate as willpower and ambition before, probably not so successfully. What to comment here?
I'm also quite careful when quoting stuff or commenting on quotes. I've read a couple of works on ancient astrology, very few indeed, in order to get an idea and to develop my own understanding. From there on, I don't read web articles with the exceptions of probably two or three websites, like Skyscript, Astrologyweekly and sometimes the forums there. So, if you want to comment on various quotes, I'll step aside, there is everything out there on the net. But in this particular case, the quote seems just translated from more complicated ancient texts and still holds the initial meaning.