In behavioral psychology, the phenomenon that it takes at least 21 days to form and consolidate a person's new habits or ideas is called the "21-day effect." In other words, if a person's action or thought is repeated for 21 days, it will become a habitual action or thought.
"Do migratory birds follow the sky? Or does the sky constrain migratory birds?"
"The sky is a shackle for migratory birds."
"Neither."
"I'm protecting you."
Concept: It takes 21 days to develop a good habit