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. Ruiz believes that if you judge yourself and do your best at all times, you will be able to avoid remorse.  By integrating the first three chords and doing the best in all facets of life, the individual will be able to lead a life without grief or self-awareness.  His son, Don Jose Ruiz, then published a sequel with his father titled The Fifth Agreement, adding another chord: Don`t take anything personally. This is the second chord of Don Miguel Ruiz`s classic,”The Four Accords.” I need a memory today. So I open his book on this and I read: If you keep this agreement, you can travel around the world with an open heart and no one can hurt you. They can say “I love you” without fear of being ridiculed or rejected. You can ask what you need. But if you don`t take it personally, you are immune in the middle of hell.
Immunity in the midst of hell is the gift of this agreement. The second agreement invites us to recognize that we are all working from the point of view of our own unique experiences. My perspective is different from your point of view, and while we share a multitude of commonalities and connections, your actions, thoughts and words are not for me. Whatever a friend posts on IG, tells me over coffee or thinks about how I dress, for example, it`s not about me. (Emphasize, because it`s still pretty hard for me to see, and my guess is that I`m not alone.) When I take something that a friend does personally, I focus, I used myself, I used limited information to reach conclusions, and I ignore their experience and perspective. Besides, I tell myself lies. The second agreement offers readers the opportunity to manage the hurtful treatments of others that they can experience in life. She argues that it is important to have a strong self-concept and not to have to rely on the opinions of others to be satisfied and satisfied with their self-concept.
This agreement also allows readers to understand the idea that each individual has a unique vision of the world that changes his or her own perception and that a person`s actions and beliefs are a projection of his or her personal reality.  Ruiz believes that anger, jealousy, envy and even sadness can subside or dissipate as soon as an individual stops taking things in person.  All of this said that if you are in friendship with someone whose words or actions harm you, it is healthy to set limits, create boundaries and honor you.