Related to the hedgehog theory. The "hedgehog" theory tells a story: Two sleepy hedgehogs hugged each other because of the cold. But because each had thorns on their bodies, the thorns made it difficult for the other to sleep. So they moved away for a while, but They couldn't bear the cold, so they got together again. After many struggles, the two hedgehogs finally found a suitable distance: they could get each other's warmth without getting stung.
The emphasis is on interpersonal relationships The "psychological distance effect".
Maintain a close relationship with your subordinates, but this is a "close and limited" relationship, an appropriate cooperative relationship that is neither far nor close. Maintaining a psychological distance from subordinates can avoid subordinates' defensiveness and tension, reduce subordinates' compliments, flattery, gifts, bribes and other behaviors towards oneself, and prevent subordinates from calling each other brothers and eating and drinking indiscriminately. This can not only gain the respect of subordinates, but also ensure that principles are not lost at work. An excellent leader and manager must "keep the sparse things secret and the secret things sparse". This is the way to success.