"When 'the above' says 'no': Reasons spells go bust" is an article that's given me quite the headache back when I was writing for Asteria 2. The reason for this is that even though I had a glimpse of the essence of what I was fucking my brains out to explain in words, I couldn't quite put my finger on it and so the image that usually forms in my mind on such occasions was fuzzy.
Luckily, I appealed to Raziel to help me make sense of that fuzzy image and, because he's such a great guy, he came through big time. When all was done I was very pleased with how the article turned out. Little did I know at the time that somewhere in an old work laid the piece of information that would've made me have an instant epiphany had I came across it while struggling with the article. But I'm uncultured so I had no idea of what that book contained haha.
Until recently! Book III of Liber Astronomiae has a small yet very interesting chapter, Chapter IX. Thanks to my reader Nacho who's got the Spanish translation I came across this two paragraph chapter. In itself, it is quite insignificant and merely discusses things any astrology enthusiast can observe by studying the charts. Its title, however, and one of the phrases it contains represent the very essence of my article.