Byu do not enter the world as fully-fledged individuals. No, indeed. They know some basics, but the rest has to be learned themselves. Well, spare your assistance, of course. There are five main Talents to learn; your Byu may need all of them to survive.
Foraging
Foraging is the ability to find resources. A Level 1 forager knows how to SCAVENGE, to FORAGE, and that trees can be cut down for lumber. They also know that dirt tastes bad, crystals are not for eating, and eating food is good. On level up, a forager will begin to remember the flora they might encounter, and perhaps even learn recipes. They might still eat the occasional toxic mushroom. Fruit, vegetables, herbs and more will all be found this way.
Mining
Mining is similar to Foraging in that it allows Byu to find resources, but also minerals. A Byu that is given a shovel could dig down to minerals, but it is more advisable to mine surface rocks or to find a MINESHAFT. The more time invested in mining, the greater chance a Byu has of finding ORE. Utilising ores will also require a furnace. Certain mines may have particularly useful or valuable ores, and perhaps even crystals. Mining requires a pickaxe.
Fighting
Fighting is quite easy to understand; it's the ability to FIGHT. Under cover of darkness, be it in the subterranean depths, or by nightfall, many creatures can come out of the woodworks. Weapons aren't easy to come by; your Byu will have to make do with either their fists or something grabbed from the ground on the Second Night. Using and practising with a weapon allows the Byu to gain a greater affinity with that weapon type. Arcana can be used in conjunction with fighting, though you cannot gain any affinity.
Arcana
Within all Byu is a potential for great power. The power to manipulate the world. This power is ARCANA. In order to control Arcana properly, a Byu must have access to a staff. However, even without the instrument of control, Arcana can still be used. To cast a spell, the Byu must invoke the power of the five elements - though a Level 1 Arcana can only call upon one at a time. The Intent must either be Dark - to destroy, to damage, to remove - or Light - to heal, to create, to mend. Spells require specific patterns if using more than one element, so be wary. They also allow for enchantments - to increase health, speed and strength, and to reduce hunger, exhaustion and nausea.
Culture
Learning is something we all do. We learn from our experiences, and for Byu, that's no different. Except they cannot learn through just Foraging, Fighting, Mining and Arcana alone. Which is where Culture comes in. A learned Byu can manage resources, grow crops, craft new items and tools, and build buildings! It's a vital skill. But learning alone can only get you so far. Culture will also permit you and your Byu to learn about various enemies and increases your connection to the Heartstone.