1- Instinct: This is the force that is necessary for human survival, such as earning a living, finding a safe shelter, and reproducing
2- Habits: This is the force that harmonizes a person's daily life with his surroundings, such as clothing, food, living conditions, speech, etc.
3- Nature: This is the force that helps a person move forward in the process of evolution, such as being unique in thoughts, creating his own way of thinking, having his own style of writing, having his own way of speaking, etc.
So if you understand your own nature (instincts, habits, nature), then you will understand which part of your nature can be changed and which part cannot, because this process creates ease in your life. So understand yourself so that you can better develop yourself in the evolutionary journey of life.