Through gyroscopic precession the procession of the Holy Spirit from the Father and the Son into your life is tracked. When you start to back slide it causes our specially made gyroscope and accelerometer in our inertial guidance system. The inertial guidance system measures directly how inert you are to the guidance of the Holy Spirit. When it detects back sliding the negative acceleration is detected and you are immediately warned.
One of its extra features is the Tabernacle Locator, handy for those churches where it's hard to know which direction to genuflect. Warning: plotted routes will tend to be narrow and steep rather than broad and flat.