Rabbi Shimon fled to the cave to escape a death sentence for publicly criticizing Roman culture. According to folk tradition, during his twelve years of isolation, he engaged in mystical meditation and wrote the Zohar, the central work of Kabbalah.
Judaism is filled with ritualized counting. From the seven ordered days of creation, to the repetition of forty throughout the Tanach (Hebrew Bible), to God's exhortation to Abraham to "count the stars, if you can count them…" Currently, we are in the midst of counting the Omer, the days from Passover to Shavuot.
What makes this holiday a favorite among secular Israelis, while it is almost forgotten by Jewish kids in the Diaspora?