Beginner’s mind is a state of being that asks for openness, keeness and and lack of preconceptions, even at an advanced level.
It’s useful in many situations. It begets humility, learning and growth. It places us into a state of receptivity, emptiness (of the Buddhist kind) and honesty.
Whatever you do today, approach it with a beginner’s mind. See how different things feel when we let go of our attachment to conditioned habits, patterns and behaviours.