AK talks through the process of rarefaction of BOOK OF HOURS' skill names (and, by extrapolation, wider BoH design) in our latest update.
"...when I went back to the skills list after some time away, I realised it’s hopelessly confusing to have Four Regrets at level 5, and Nine Disciplines at level 2. I didn’t want to change the whole scheme, so I tried out things like Crossroads Regret and Ninefold Practices. The numbers were still in there but less confusing.
But Secret Histories stuff balances rather carefully between the allusive and the incomprehensible. If I call a skill ‘Flame Enchantments’ that’s boringly on the nose and there’s no exploration to enjoy. But if I call it ‘Articulations of the Laminar Secret’ it sounds great, but it’s bloody hard to work out what the skill actually does."