Even sincerity is not the same as authenticity. Sincerity symbolizes that a human being when he says something, does not falsify his testimony, which is expressed by feeling. But this is not enough for the person to be authentic.
Authenticity is an immediate, direct, intelligent and simple response to every situation. It is a response that occurs instantaneously from the depths of being, a response that is complete in itself, and that, therefore, leaves no residue, does not leave energy to be resolved, does not leave emotions or aspects to be resolved. It is something that, because it is a total action, leaving for granted total clarity and generating confidence.
Authenticity is the simplest thing that exists, because it is what arises after the complex, the compound, the acquired have been eliminated.
Another aspect of authenticity is that it provides the evidence, the certainty, the clarity, in each moment, to evaluate each situation, in reality, the situation implies, already in itself, the answer, because the situation and the answer are not two different things, but they constitute only one thing. This is only possible when the mind is not divided, when the mind is open and distinguishes what happens at that moment.
Authenticity is being and being at the center, therefore, at the optimum point to go in any direction, at the same time, a constant experience of satisfaction, joy, happiness, because that deep content, that content of fullness.
