Light Wiring Diagram Loop. Seems like its called switch loop wiring. Now connect the loop of the black wire to the terminal at the bottom of the switch.
This wiring diagram shows how all houses and most of commercial lighting installations are wired these days. It shows three cables. This is cable c in fig 2 fig.
Cable will be used for lighting.
Also all the black wires are wire nutted together in the light box and none connect to the light switches. The radial lighting circuit has 3 common wiring options which may be mixed at will. Would this be switch loop. The neutrals of cables 1 and 2 are joined together in the neutral terminal block this is where the neutral side of any light fitting will go.