Everything in this world can be used as a mashal for avodas Hashem.
GPS reminds us that no matter what situation a person is in, Hashem is with him, directing him on the right path.
It also teaches us that when a person takes a wrong turn, the GPS doesn’t shout at him. It just tells him what to do now.
Finally, the GPS reminds us that teshuvah is always an option. Even if one is driving the wrong way for many years, he can always find his way to his destination.
~ R’ Elimelech Biderman
