Knowledge before application
Enchantments and disciplines are learned from their appropriate books or manuals. A locked entry is a reason to explore, not permission to apply an effect you have not discovered. Keep the item carried when the station requires a carried target.
One readable transaction
Choose the target, choose the effect or rune, then review tier, compatibility and reagents. The Enchanting Table uses Mana; rune inscription uses Qi or Mana when Qi is insufficient. Preparations that do not consume a paid inscription are not a quality upgrade.
A better copy
A successful paid enchantment or full rune inscription can promote eligible workmanship. That is separate from the effect you added and does not create an endless free quality loop through repair, removal or previews.
Mechanics reference
Original guide prose, checked against these game source catalogs for 1.53.0 · build 70:
game/systems/player_enchanting.dartgame/systems/player_runes.dartinventory/item_quality.dart
Actual in-game costs, compatibility and confirmations take precedence if your installed version differs.