There are two reasons for distraction and its harm. One is that the present moment is too boring, so they pursue something more interesting. The second is that the present is too painful, so they pursue something more comfortable. Because the body is trapped in reality, we have to let the mind run wild. No matter where we are and what we are experiencing, as long as the reality is a little unsatisfactory, we can let the mind to heaven, instant escape from the predicament, enjoy the comfort and pleasure of the imagination. In other words, the cost of distraction is so low, and human nature is so eager and refuge so easy, that by default we all unconsciously stay within our mental comfort zones. Unfortunately, our mind wandering is good for a while, and then we have to pay for all kinds of losses. One of the biggest losses is the poor quality of life. Because when our mind wanders, we either dwell in the past, worry about the future, or fantasize about impossible situations, it allows us to live at any time but not in the present. And life is made up of fragments of the present, the fragments of physical and mental unity is a happy and focused high quality life, the fragments of physical and mental separation is a distracted life of low quality. Distraction can also lead to procrastination and inefficiency. Because emotions lag behind behavior, people tend to be slow to get into the swing of things, requiring an emotional transition. It can be seen that the essence of distraction is escape. Therefore, when facing difficulties, people who are separated from their body and mind will always unconsciously retreat to their comfort zone, while people who are integrated with their body and mind are more likely to jump out of their comfort zone and face difficulties. In the long run, a person's ability to focus may be a predictor of his or her future success.

When Bill Gates and Warren Buffett first met, Gates' father gave them each a card and asked them to write a word on it describing what made them tick. They both gave the same answer: focus. Of course, we don't have to blame ourselves too much for being distracted, because it's part of our nature at the micro level. It's not just you, it's everybody. The reason behind this has to do with our brain's memory mechanism. When it comes to memory ability, humans are certainly not as good as computers. We are not superior in terms of capacity or accuracy, but this does not affect the speed at which we retrieve memories, because the human brain uses context-related memory, which is to remind us of certain things by using cues such as context or clues. While we can instantly recall someone or something based on anything from a name, voice, time of day or scene, a computer processes all information equally, searching through a database each time it is extracted. Background associative memory can greatly reduce brain energy consumption and make up for the lack of processing speed of brain neurons. However, evolution is a double-edged sword. One side effect of contextual memory is that any information we perceive, hear, see, touch, taste, or smell can lead to something else in our memory. And because our senses are controlled by our subconscious mind, which never disappears, this kind of distraction can happen whenever we're awake. This is why we need to exercise metacognition, because growth is the process of overcoming nature. We must use awareness and self-control to restrain nature, otherwise we will be ruled by the unconscious without realizing it.