Lag BaOmer is a festive day on the Jewish calendar, celebrating the anniversary of the passing of the great sage and mystic Rabbi Shimon bar Yochai, author of the Zohar. It also commemorates another event. In the weeks between Passover and Shavuot, a plague raged amongst the disciples of the great sage Rabbi Akiva. On Lag BaOmer the dying ceased. Here is how it is celebrated:

1. Light Bonfires It is traditional to light bonfires on Lag BaOmer eve. These commemorate the immense light that Rabbi Shimon bar Yochai introduced into the world via his mystical teachings. This was especially true on the day of his passing, Lag BaOmer, when he revealed to his disciples secrets of the Torah whose profundity and intensity the world had yet to experience. The Zohar relates that the house was filled with fire and intense light, to the point that the assembled could not approach or even look at Rabbi Shimon. Read: Why a Jew Must Be On Fire Dancing in Meron on Lag BaOmer. (Photo: David Cohen/Flash 90)

2. Go to Meron By far the largest Lag BaOmer celebration takes place in and around Rabbi Shimon’s tomb, located in the northern Israeli village of Meron. Hundreds of thousands attend the festivities, and the round-the-clock celebration, singing and dancing are unparalleled.

3. Shoot Bows and Arrows (Keep Safe) Children customarily go out into the fields and play with imitation bows and arrows. This commemorates the midrashic tradition that no rainbow was seen during Rabbi Shimon’s lifetime. Rainbows first appeared after Noah’s flood, when G‑d promised to never again devastate the world. When people are deserving of punishment, G‑d sends a rainbow instead. Rabbi Shimon’s merit protected the world, rendering the rainbow superfluous.

4. Attend a Lag BaOmer Parade The Lubavitcher Rebbe encouraged the practice of arranging children’s parades on Lag BaOmer in celebration of Jewish unity—a major Lag BaOmer theme.