Because of an invisible force known as magnetism, the needle of the compass aligns itself with the magnetic field surrounding the earth between its poles.
١ أَوْضِحُوا كَيْفَ يُمْكِنُ لِقُوَّةٍ غَيْرِ مَنْظُورَةٍ أَنْ تُرْشِدَ ٱلْمَرْءَ .‏