You pay for these lessons with the basic codestones (Mau, Lu, Vo, Tai-Kai, Eo, Main, Zei, Orn, Har, Bri). Each time you train, you have to pay with random codestone(s) that you do not know until you get to the screen that shows you what codestones you have to pay for. These codestones can be found in random events around the site or you can purchase them through the shop wizard, trading post, or auctions. The level you are corresponds to how many codestones you have to pay. The more your level, the more codestones it costs and the longer the lesson lasts for. Example: