I'm beginning to regret having not blogged my daily progress for the last seven years. There are a lot of undocumented discussions and ideas for Tale. One of the more recent ones is the notion of shards of hexforce. I've enlisted the aid of Geoff Kriston (previously mentioned by his mmearth.net character name, Toronsire Elenath) and he's distilled this description of the shards:
The Hexforce is the mystical mover of magic, the essence "mana", in Tale. Shattered into six shards, these pieces and their shadows are both mana dipoles and tomes of instruction, inscribed with instruction in the fundamental mechanics of the Tale world.