Rabbi Matityahu Glazerson has used his unique approach to uncover the exalted ideas that the words and letters of the holy language, Hebrew, convey. This approach is especially suited to the study of Haggadah, for the holiday of Passover does not only symbolize our redemption but is also symbolic of the holy language. Pharaoh's underlying motive was to break down the barriers that separated the Jew from the Egyptian, thus effecting our spiritual downfall through assimilation. The sages teach that one of the reasons why the Jews in Egypt deserved to be redeemed was that they continued to speak Hebrew. In this way they guaranteed their distinctiveness and their sanctity.

Above the Zodiac: Astrology in Jewish Thought uncovers the profound connection between Jewish mysticism and classic astrology by citing the many references scattered throughout Jewish literature to the influence of the stars on human destiny. Rabbi Matityahu Glazerson gives a month-by-month rendering of Jewish astrology according to kabbalah, summarizing the complex system of elements in Jewish thought that correlates to each astrological sign. The book also explains the unique relationship the Jewish people have to astrology, and under what circumstances astrological consultations are permitted to individuals.

Music is an intrinsic part of Jewish expression, reaching back to the biblical "Song of the Sea," which appears in Exodus, and the Psalms composed by King David. Employing the tools of Jewish mysticism, Music and Kabbalah examines the spiritual connection between God and music. The holy aspects of the musical scale, musical terminology, and instruments named in the Psalms are deciphered by using the gematria (interpretive numeric value) of their Hebrew names. Rabbi Glazerson employs music as a vehicle with which to teach that "Judaism and the Hebrew language, the holy tongue, are vast and deep, embracing incomprehensible knowledge of every aspect and sphere of life."

In this intensive study of Hebrew letters and words, Rabbi Matityahu Glazerson uses gematria (interpretive Jewish numerology) to reveal the mysterious correlation between Jewish ethics and practices, and the numeric values of the Hebrew words which name and describe them. This profound and lucid exploration uncovers the deep spiritual resonance of Jewish thought, and explains a variety of theological issues using the ancient Hebrew language as a key to understanding. Rabbi Glazerson compares the Hebrew letter to the atomjust as the atom is the basic module of physical life, so the Hebrew letter is the basic component that contains the essence of Jewish spiritual life. Hence, Jews have used gematria for centuries to understand spiritual and moral teachings embedded in the Hebrew language. The book begins with a detailed explanation of gematria, including: the basic concept that each Hebrew letter has an independent numeric value; the variety of ways in which the letters of a specific word can be explicated in order to compute the word's numeric value; and the relationship between seemingly unconnected words based on their related numeric values, which is the foundation of gematria interpretation. Anyone interested in gematria will find Rabbi Glazerson's introduction invaluable in both its scope and its accessibility. Rabbi Glazerson postulates that "Hebrew, the holy language, is the source of all languages", and he provides many examples of Hebrew words that are the roots of words in English and other languages. This hypothesis also opens a detailed discussion of specific Hebrew letters and their mystical significance, thereby providing a background for further investigation of the partnership between Hebrew letters and Jewish concepts and activities.