From the moment the Jewish People arrived at Har Sinai, it became a frightening and awe inspiring experience. Why did Hashem want to evoke fear into us? If this was to be the wedding between Klal Yisroel and the Ribbono Shel Olam, shouldn’t it have been music instead of thunder and lightning? Rabbi Shafier explains that the purpose of the fear was to drive home the message of responsibility. By accepting the Torah, we not only had the power to change the world, the very existence of the world became dependent on us. Because of matan Torah, Klal Yisroel is now responsible for energizing both the physical and spiritual worlds. What an awesome achariyus!