This is semi-weak and dry look at the basic of two opposite views of how psychology is conducted.

Psychology: Pandora's Box? In the back of your mind you always are using psychology, always analyzing and using your subconscious to make up your mind. Science has tried to understand what causes humans to think and feel, what drives our actions. It has been divided into several sections all your feelings and thoughts are driven by physical things. Another faction believes all human behavior is driving by things underneath the surface and in the subconscious. …

…Interesting but not widely believed but somewhat practiced but we can understand things such as "learned helplessness". Chew on it and decide for yourself. No one can be certain of anything in the field of psychology there will always be exceptions to the rules. How far is it until we have gone far enough to understand. The answer is we won't an answer will always yield another question. Don't worry though I've got you covered.