Why do some Jewish people give monetary gifts in derivations of the number 18? It could be a mystery, explained by a peek into the Jewish mystical practice of numerology known as "Gematria." In this AIB Presents we explore the practice of assigning a numerical value to each Hebrew letter, to find deeper, hidden meanings to the words. And, by the way, giving gifts in derivations of 18 -- bodes well for one's personal health and wellbeing!