Mastery is the ability of distinction. What we know comes from the eyes to our perception, then to our judgment and finally to our interpretation. Mastery is letting go of what you already know. The mind is a mechanism that is not designed to work right now. It is a thing that is designed by default to protect us from what might happen to us in the future based on what has happened to us in the past.
Mastery is to love the plateau.
The self is a separate identity apart from Mind, Emotions and Body. Mastery is not a solo journey. Experience your experience. Communicate experiences to help others. I have a strong sensation in my body.