take the reins

:  to get into one's hands or into one's possession, power, or control: such as

:  to seize or capture physically

:  to get possession of (fish or game) by killing or capturing

:  a distinct or personal point of view, outlook, or assessment

:  a distinct treatment or variation

:  an act or the action of taking: such as

:  kidneys

:  the region of the kidneys :  loins

:  the seat of the feelings or passions