| The Chai symbol, popularly worn on necklaces, is the Hebrew word "Chai" (means 'living'), consisting of the two Hebrew letters Chet and Yod. This word refers to God. According to the gematrian system, the letters of Chai add up to 18. There have been many mystical numerological speculations about this fact and the custom to give donations and monetary gifts in multiples of 18 as a blessing for long life is very common in Jewish circles. |
