In this study, its author, Obdulio Banda Marroquín, displays the critical spirit that characterizes him. The authenticity and originality of the thought of this author is commendable, who does not need to subordinate himself to other authors and limit himself to commenting on them, nor to make merely hermeneutic investigations of other people's ideas. The courage of this thinker to defend his decidedly audacious approaches is also evident. This book marks a milestone in the historical interpretation of the self-realization of the human being.