During the writing of this book, I elaborate on issues such as social paradigms, paradoxes, cultural dogmas, and how the individual submits to the valuation of superfluous things. I cite theses from other authors such as Sigmund Freud, Leandro Karnal, Arthur Schopenhauer, Augusto Cury, among others. The entire book is an analysis of human psychic errors; we all have our obsessions, our psychic patterns to follow. The entire book presents very interesting facts, practical experiences, intuitive and theoretical knowledge, showing how to identify them more coherently according to the reader's subjectivity. The title of this book itself refers to "THE MIND TRAINED TO DECEIVE ITSELF," and leads the "I" (Freud's concept) to think about who we really are, providing many instructions for intense reflection. It also comments on the emerging computer life of today, to which the individual has become more dedicated, the liquid world, a metaphor from Professor Zygmunt Bauman.