Simplify the following text for a Grade 6 native English-speaking person.
Original: By using a correct belaying method , the belayer can hold the entire weight of the climber by using relatively little force , and can easily arrest even a long fall . By using a mixture of belaying angle and hand-grip on the rope , a climber can be lowered gently by the belayer to a safe point where climbing can be resumed .
Simplified: A person on the ground who is belaying is called a belayer .