Recipes have a level (listed in crafting window) and your class has a level. This skill makes the game calculate your actions as though the recipe you're working on is the same level as your class for the next 5 steps. I forget the exact math, but there's a penalty to progress and quality when a recipe's level is higher than yours and this removes it temporarily. It's worth noting that there's a buff to progress but not quality when your level if higher than the recipe.