It is desired by all human kind to be accepted by their surroundings. Students hope to be accepted by their peers and teachers, employees hope to be accepted by their coworkers and boss; in general, people seek some type of acceptance or importance from others.
When a student isn’t understanding the school material all that well and a teacher discourages them for it, it brings them down more into a slump of learning to say, “I can’t”. When we, as humans, feel dejected from anything, we tend to stray more and more away from it. But if we were to feel some sort of encouragement, like a teacher saying, “You didn’t understand this material that well, but I know you’re capable of learning it, so about we meet after school?” This shows immediate interest in the student making them feel that they do have the potential and this teacher really wants to see them excel. It makes them feel important.
Furthermore, say an employee at a firm has a huge project and is putting a lot of work and their creative ideas into it. If the boss reacts in such a way such as, “This is absolutely awful! What were you thinking?” it’s obvious that the employee will feel immediately shut down and start to resent themselves for all of their hard work. However, if the boss were to say something along the lines of, “I like how you think but lets add a little more of this and a little less of this, and we’ll be good. You have very creative ideas!”, then the employee would be more likely to start exceling in their work and also more likely to come up with more ideas for other projects.
Just the way human communicate with one another affects our persona. When we get negative feedback on anything we do, it make us reevaluate ourselves and discourages us form what we might be passionate about. But just the slightest change in the wording by turning a negative into some encouragement changes everything. Heck, it’s practically a superpower!