Yod (also spelled yud, yodh, jod, or jodh) is the tenth letter of the Hebrew Alphabet. It signifies the number 10. Yod represents or is a name for God as the creator. It represents the point from which all of creation emerges. It reminds us of the unity within multiplicity. Yod is the foundation, the hidden spark of the divine which causes everything to be. The holy name, YHVY (Yahveh), starts with Yod. It is small in size, compared to the other letters of the aleph-bet, signifying the greatness of Yodt. According to traditional Kabbalah, all of creation came forth from a single point. Thus, Yof represents God’s infinite presence within the finite world.
We see Yod as a single point, yet it represents 10. This teaches us the unity within multiplicity. This is particularly true in light of the 10 sephirot of the Tree of Life; one tree comprised of ten parts. In the Gospel of Matthew, Jesus says: “One jot shall in no wise pass from the law, till all be fulfilled” (Matthew 5:18). The jot he is speaking of refers to the letter Yud.