"When you learn, teach. When you get, give." (Maya Angelou)

The principle of "go in, go out" is a very "healthy" principle.

If we want to live in a healthy life, physically and mentally, we
should apply that principle in our daily life.

We should teach what we have learned in order to be able to learn
more. We should give what we get in order to be able to get more.

It should be maintained to be balance.

The imbalance of this principle will cripple the wellness of our being.