A humble obedience to the divine commandments is a second essential part of Islam, completing the act of faith — which is belief in God's revelation — by obeying God's commandments in practical affairs. (religion-online.org)
Shi`ites believe that in formulating the laws governing practical affairs it is essential to follow strictly the words of Muhammad when he said, «I leave two things with you, the Qur» an and my descendants, which will lead you to the true way.» (religion-online.org)
Car - Net is a far more practical affair, automatically contacting the emergency services if an airbag is deployed — or notifying you on your mobile phone if the car is being broken into. (carbuyer.co.uk)