Everyone has had times in their lives when they have felt powerful confidence, or unwavering courage. Some people live in this state all the time - but more likely, people only have the odd moment throughout their lives when their confidence has burned strong and bright.
But if you have felt confidence and courage even once, you can feel it again.
This is a classic neurolinguistic programming technique that links your neurology back to that state and fires the neural circuits around the memory.
It enables you to access that courage whenever you need it.
Note: you can also use this same process, but change the word "confidence" for any other state you would find useful e.g. creative, peaceful, loving, grounded, etc.