At work, we must strive to meet the job requirements, which will consume our own resources, make people's heart rate faster and feel tired. Short-term rest or staying away from stressful environment can help the physical and mental system recover. According to the theory of resource protection, people will strive to protect and maintain the resources they have. When stress consumes resources, people will try their best to restore damaged resources or acquire new resources.

When migrant workers are under pressure, fishing can help people get rid of the pressure and bondage in the working environment temporarily, and help to compensate the damaged resources and restore the balance of resources. Psychologists call this model "psychological separation", which means that people are temporarily away from work both physically and mentally. After a certain period of psychological isolation, stress relief and energy recovery, people can cope with the next stage of work challenges in a better state.

Besides fishing, there are many ways to achieve psychological isolation, including lunch break and exercise after work. However, with the popularity of intelligent hardware in recent years, the working hours and workplaces of migrant workers have been broadened and their work efficiency has been greatly improved. At the same time, the boundary between work and family has become increasingly blurred, and personal pressure has risen sharply, making it difficult for migrant workers to complete psychological isolation during non-working hours. Many people complain that even on rest days, they should stare at WeChat and Nail Work Group. In the face of the nailed "Do Not Disturb After Work" mode, it is even more blunt to say "Do you dare to use this function?" It is not difficult to see that migrant workers are really helpless about invisible overtime.

Because psychological isolation cannot be completed in non-working hours, many people choose to fish during working hours to adjust their self-status.