Jesus took the time to teach His disciples to pray this way because it sets our mind on things above where Christ is. It helps us remember that God loves His children with the most tender affection, that He sees us in our secret places, He knows what we need before we even ask Him, and He acts on our behalf and for our good by His heavenly and kingly power. If we allow Scripture to form our view God, we will never pray with hypocrisy but always with integrity, never mechanically but always thoughtfully, which is exactly what Jesus wants of us.