Discipline with purpose

"Out of heaven he let you hear his voice, that he might discipline you. And on earth he let you see his great fire, and you heard his words out of the midst of the fire." (Deuteronomy 4:36)
What an interesting concept of discipline: Because God revealed himself and his people heard HIS voice, they should be willing to be disciplined. Don’t we usually associate discipline with having done something bad or wrong? In this case it almost implies being willing to be disciplined. Or should we say being willing to be trained in a discipline? In this situation it actually helps us to understand one important concept of discipline. Discipline can be both: 

• to be disciplined
• to master a discipline

In other words: To be disciplined -- ideally -- directs us into a state of mastering a discipline. Learn to discipline your kids and friends towards mastering a discipline. For example, help them get good at living alongside other people (learn social skills). Help them to get good at sticking with a task (learn persistency). Simply put, discipline them to master a certain discipline!
And, while we are at it, be willing to see discipline from God or from a brother as a means to train us in a discipline. 
Are you willing to be disciplined?