To this end, Ruiz proposes four new agreements that he can now conclude with himself: on the basis of all these ideas, Don Miguel has introduced four clear messages that should be implemented. 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.  Improtedible means “sinless,” and a sin is something you do or believe, which is contrary to yourself. It means not speaking against yourself, against oneself or against others. It`s not refusing. To be impeccable is to take responsibility, not to participate in the “guilty game”. As far as the word is concerned, the rules of “reaction of action” apply. What you spend energetically will make you back. The correct use of the word creates the correct use of energy, love and gratitude perpetuating the same thing in the universe.
The opposite is true. The incompetent starts at home. Be immaculate with yourself and reflect your life and relationships with others. This agreement can help change thousands of other agreements, especially those that create fear rather than love. The four agreements show us that there is another way. By freeing ourselves from the structures and expectations of society, we can enter into new agreements for ourselves. 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 ancient Toltecs called themselves dream masters because they understood that we all live more in a dream than in an “objective reality”. And the good news is that we all have the power to change our dream. We must first become aware of our domestication and then adopt new agreements. With consciousness and understanding comes forgiveness. I`m sorry for our past and for the persistent “mistakes” we still have in relation to the agreements we still have. Forgive us for letting ourselves and the people around us suffer because of these illusions. I`m sorry for the suffering that others cause because of their illusions. The fourth agreement allows readers to have a better understanding of the progress made in achieving their goals in life.
This agreement involves the integration of the first three agreements into daily life and the exploitation of its own potential.  It is a matter of doing the best that can be managed individually, which varies from the different situations and circumstances that the individual may encounter.