Listen, Internalize & Act or Else

Most of us have walked out of a powerful shiur saying "wow" and changed nothing by Monday. The Zohar in Parshas Yisro asks why the whole world heard about the splitting of the sea and shuddered, yet only Yisro came. Rashi says he heard of Kriyas Yam Suf and the war with Amalek. Why those two, and why does his arrival sit right before Matan Torah? Rabbi Asaf Prisman adds the story of a man in a sandwich line in Israel, and a memory that stopped him in his tracks.