Self Mastery and Underlying Philosophies 
We can stroll back into history to explore the chief underpinning assumptions that spread throughout the centuries in the theories in scientific discipline in order to find the best ways to manipulate and build our self-mastery skills. 
Identifying the chief philosophers all through the western traditional pathways one can discover the prime contributors that helped to form psychology discipline. It is something of interest to us all, since building self-mastery involves taking control of your emotions, mental processes, and your behaviors. 
We can identify historical relations amid the start of psychological studies that took us to these formulations of discipline. By exploring the processes of self-development as well as the sciences of psychology, one can examine the root elements of study in relation to the body and mind in its ancient times, or archeological find. 

We can spend time identifying the distant past and the steps that were taken to map out the structure of the brain. This helps us to associate with the behavioral processes, which becomes useful to assist one with cultivating self-mastery skills. 

By identifying the chief contributors, one can discover the processes of self-development through the neurological psych processes. As humans, we all have to find our way through self-development, which moves us to develop self-mastery skills. In short, self-development involves nurturing and maturing, which is your path to self-mastery. 

Because of the many studies of the nervous system, scientist, branches in medicine, and others are seeing that physiological responses play into our psychological response. We must examine then the body and mind in order to take control of our emotions, mental processes, and our body. This is the true way to self-mastery, since all aspects of our human being work in harmony. Examining the body and mind is the process of what René Descartes called “the doctrines of Cartesian Dualism.” Cartesian relates to René Descartes writings and theories. Dualism is the theories of having two opposite concepts. Philosophical theories such as René’s theory is based on the notions of opposing concepts, in which the theory particularly evolves about the notion that human beings are made of two separate or independent constituents, which the body and mind joins. 

In the doctrines of conflicting principles it are the religious doctrines that believe that two contrasting and antagonistic forces of moral and evil conclude ones route of events. Certain religious groups believe that the people are intrinsically dual in nature, i.e. both physical and spiritual. The bible contradicts these theories as it clearly states that the body and mind are one. 
Because we have so many people begging us to pay attention to their beliefs and traditional ways of thinking it is essential that we avoid letting others shape who we are. This is one of the largest problems we face today, i.e. most people are shaped by their environment, influences, et cetera. Is the power of persuasion we want to avoid? 
We need to reach deep within ourselves to find our way to self-mastery. It is the only solution we have, yet we must also learn to let the Almighty God direct our path. There are unruly truths that point that man has no ability to guide his own path without his creator giving him a hand. It is time we start focusing on building our spirituality by recognizing the truth. The only way we can accomplish establishing the truth is to stop relying on false religions that misguide our path, rather to examine, investigate, and study to find the truths for ourselves. This will protect us against the evilness as mentioned above.