This is the Memory! It's not just the repeat of the past, but mixed with strong feelings, in fact. Difficult to make it clear by languages.
Memory is not a single mental organization, it has two basic forms: declarative memory and non-declarative memory, they have different types of memory and storage in the nervous system. And also, have their own consciousness and the subconscious effects.
Memory comes from the change of neurons. Neurons with habits is a member of the neural pathway , making a memory of habit stored on neural circuits which on the behavior. Once a loop shapes, it takes a long time without stimulate to recall connections back. So this is why men always spend more effort and time to get rid of a bad habit than to establish a good habit.
Our brain mechanisms of memory storage is not evolved particularly for our services. It is only attached to a very effective signal system. It makes us understand that evolution is just a tinker, who uses what is on hand. Tinkering will be enough. For it is not a engineer, there wil be no perfect design. That's the point why parents should not insist on a child's pursuit of perfection. It should be "useful enough." Human beings is not designed to be perfect, so how can we ask for one's perfect?
I think therefore I am. It can't be true. Because we are not what "I think". We know that who we are because we remember what we thought. Each idea we thought out, each word spoken, and each action done - indeed, our self-perception and interaction with others - all that because we have memory, because our experience can be recorded and stored on our brain. Memory connects our mental and life, and construct our personal history. It allows us to grow up, and never be too old to change. When we lose the memory, we will lose the ability to re-establishment our experiences of the past. As a result, we have lost our connection to ourselves as well as the ability to contact with others.
Subjects seem quite different from each other on the surface, as if there is no more relationship. But when the research continues, it's easy to found that the roots are connected. That is why a Doctor degree called Doctor of Philosophy. When research to a thorough knowledge, Everything returns to the source - the relationship between men and nature, which is a subject of philosophy.
LEARNING TO ACCEPT WHAT YOU ARE: THE COMPLETE GUIDE TO SUCCESSFUL SELF-IMPROVEMENT