That`s all for this book! Don Miguel`s words are so simple, but so powerful. I hope you have learned a lot about the origin of your old beliefs and rules and how to adopt new agreements to live better in the future. If you like the job or the job you do, you will do your best without even trying. Your work will feel effortless and you will get much better results. This final agreement will help you increase the power of other agreements while stripping yourself of old patterns. The book is based on a series of spiritual beliefs, held by Toltec`s seniors, to help readers transform their lives into a new experience of freedom, happiness and love.  According to the author, everything a man does is based on agreements he has made with himself, with others, with God and with life itself.  In these agreements, we can tell ourselves who they are, how to behave, what is possible and what is impossible.  Some agreements that create individuals may not cause problems, but there are certain arrangements that come from a place of fear and have the power to deplete emotional energy and reduce a person`s self-esteem.  The book states that these self-limiting agreements cause unnecessary suffering.  Ruiz also believes that to find personal joy, one must get rid of socially imposed and fear-based agreements that can unconsciously influence the individual`s behaviour and thinking.
 Another fundamental premise of the book suggests that much of the suffering is created and that most people have the ability to transform themselves and the negative thoughts they have about the situations in their lives.  The author identifies the sources of unhappiness in life and proposes four beneficial agreements that can be concluded with oneself to improve their general state of well-being. By pacting with these four most important chords, an individual is able to dramatically influence the amount of happiness he feels in his life, regardless of external circumstances.  Don Miguel believes that this first agreement is the most important, but that it is often the most difficult to respect. He recalls that the word has perfectly its root in the Latin word for sin and a Latin prefix for without. Don Miguel explains that sin is all that is against who you are against. It is therefore to be blameless with your word, to take responsibility for your actions and not to remain able to judge. Not judging others and himself. Don Miguel describes the words as more powerful than we recognize. They are the building blocks of labels, concepts and beliefs. Therefore, we must be careful before using words, as we could potentially create new harmful illusions. The easiest way to do this is to get used to saying what you mean and what you say.
If in doubt, don`t say anything. Doing their best does not mean doing what is physically possible. This means doing the best you can manage individually, which can vary depending on the situation and your current circumstances.