The Legend about sleep-grass

Legend has it that a long time ago a flower had beautiful, large and wide leaves. The leaves were of such impressive size that the Satan expelled from Paradise was easily hidden behind them. Watchful archangel Michael decided to drive Satan out of hiding, throwing thunder lightnings at a flower. Since then, the
leaves of sleep-grass remained "shot" - cut into many thinnest slices, and any evil spirits bypasses the flower.