In one of the write up, l did mention that the goal of scientific psychology to to explain behavior. The result culminated into ' a point of view' concept with various perspective, which was not agree upon by some school of thought, like the rationalist.
However, in this writeup, we shall be looking at another point of view of the like of -psychodynamic view point" and how it affect our behavior. The psychodynamic point of view, own much to the influence of Freud and the school of psych analysis, of which Freud is the pioneer.
This point of view did assert that human personality contain field of forces among which are the primitive sexual and aggressive impulse that are consistently in conflict with our moral and ethical values.
Therefore, an individual with an emotional conflict can induce and aggravate a chronic anxiety, anger and depression. Make no mistake, we often witness this type of behavior, even in the family, group and in the larger society of today.
It will be observed that the psychodynamic point of view, in the explication of behavior, is quite significant and valuable, in particular when we choose to understand the behavior of any troubled individuals or group of person.
Now, what is personality and what is behavior?

On the one hand personality is a set of qualities unique in any individual, which is general associated with outer appearance and behavior of an individual. It is referred to as a mask -identity of a person because it reflect the outer appearance and a behavior that may not be true for the inner character, hence, the 'mask'. In a nutshell, it is a constellation of traits which is unique to any individual and it consist of the "ego" the conscious " l" at the center of personality.
On the other hand, is character, which is a set of mental and moral quality, that set an individual apart from others in his/her unique identity at any given moment. Because character work with the aid of the mind and feelings through which the personality may be glorified with the use of various mask.

But it must be developed in order to be effectively displayed, like the sense of humor and being friendly, although, this is what we are in personality but not in our character.
While, on the question of what is behavior, it could be defined as the way we act and choose to give out a complete picture to those looking at our action and reaction. It must be observed that behaviour is subject to change for different purpose and objective at nay give moment.

Taken for instance, the politeness and rudeness we often display, at various moment, depending whether we are with family or friends. However,
there are certain behavior which are acceptable and those that may not be acceptable by family and society due to code of conduct.
Basically, behavior, tends to define "what you are" while character defines " who you are" and personality defines "what you seems to be" which is relatively a stable behavioral disposition to display what you are really not ordinarily in character.
In the perspective of interrelation setting, like in marriage, this can stand or fall, on the basis of the way we react to one anther personalities. However, psychologist believe that that the study of personality is important because of its impact on behavior and actions which is not without multiple expression, among which are the hidden reason of behavior.
The same is true, according to the school of psychoanalysis of which Freud is pioneer, did believe that motives can be unconscious that may operate outside the very control of the "ego" and of the "l" of the personality. Because the force in the mind called the repression is the "ego" a defence mechanism characterized by involuntary tendency to always ready to shovel any information that threatens any element of integrity and stability of the ego down to the very unconscious psychological domain of any individual.
However, the psychologist and in particular Freud are of the believe, that the reason for human behavior, is often obscure, because a bunch of individuals often act on impulse to later regret as they muddle through life and they often appear to have only a flimsy notion why they make certain choices and take a certain turns in life.