Beginning the Hebre word tov (good), the letter Tet first appears in the Bible with the verse: “And God saw all that He had made and behold it was good.” With its inwardly oriented shape, Tet symbolizes that goodness is often hidden in our universe; as the Zohar indicates, “good is concealed within it.”

In the Kabbalah, goodness is often associated with resplendent, divine light. When Moses was born, legend has it that his mother, Yocheved, beheld a dazzling glow and “saw that he was good.” In a similar legend, the birth of Abraham was accompanied by an intense radiance.