Mastery allows you to learn new tasks quickly. Mastery also helps you excel at doing tasks. Here are a few scenarios that will require Mastery:
You are a Chef looking for work (or an Actor looking to act, etc). When you go on an audition you will usually have to show your skills by preparing a dish. Having Mastery on your side will ensure you are at the peak of your game.
You are travelling to a new country. One where you don’t know the language. You’ll need to quickly master that countries language. Having good Mastery will make learning the language easier.
So how do you increase your Mastery? Studies have shown that Mastery is a combination of your Physical and Intellectual cycles. When both of those life-cycles are in the green your Mastery is high. It is a perfect time to take advantage of it (see pic below).