In the past few generations, spirituality has been declining. Therefore, Hashem, in His kindness, has begun to show us some of His secrets that previous generations never knew. Cell phones, radar systems, electricity, airplanes, and many other modern inventions are signs in this world of the awesomeness of Hashem. How do these things work? It’s all from Hashem. If we focus on the awesomeness of the modern inventions and see that they are from Hashem, our awareness and fear of G-d will increase.