Many talk about personal development on a very superficial level, without taking into consideration that any change that happens only on a psychological level will not bring a complete transformation of the human being. Rather only the creation (or a change) of a new personality. The word "persona" comes from the Ancient Greek language, and means "mask", "appearance". Only the very surface of our totality. For this reason, it is important to understand the value and the real meaning of personal development, to see with our eyes the "invisible cage" we live in, transcending it, and evolve.