Hi,
The main purpose of the system is to have the price presented by the broker in the middle of the pending orders when the system starts.
As the market moves up or down, the pending orders will be triggered. As the market moves up or down, the broker eventually will not be able to keep going up, down, up, down, up, down forever triggering the buy stops and sell stops evenly to be able to take your money.
Eventually the broker will be force to catch up with the real exchange prices and trend and that is how it will be force to give up and eventually will have to move towards one end.
The upper end or lower end triggering the end and all pending orders in one direction will be triggered. When this happens, the result is profit because there will be more triggered pending orders in one side than the other.