Kirchhoffs rules or Loop rule or Point rule

Question

Explain Kirchhoff's rules or Kirchhoff's Loop rule and Point rule?

Kirchhoff's rules (G.R. Kirchhoff)

Loop rule: The sum of the potential differences meet in a round trip about any closed loop in a circuit is zero (0).

Point rule: The sum of the currents on the way to a branch point is equivalent to the sum of the currents away from similar branch point.