Obi wan effect

The instance of saying some words of wisdom to a person well before that person needs to use it, and when used makes a dramatic difference. Could be seconds could be years but will be needed.
Typically used in the student-teacher relationship.
Ex in movie: Use the force.
Ex in school: Take notes
Ex at work: take time to do it the right way

I wouldn't have got through college without the Obi wan effect.