Rabbi Aryeh Kaplan (1934–1983) was an American Orthodox rabbi, author, and scholar known for his extensive works on Jewish philosophy, mysticism, and Jewish outreach. He was noted for his unique ability to translate complex mystical texts into accessible language, making the depths of Jewish spirituality available to a broad audience. Kaplan's books covered a wide range of topics, including Jewish meditation, philosophy, and the Torah. He wrote many influential works, such as "Jewish Meditation: A Practical Guide," and commentaries on ancient Jewish texts like the Sefer Yetzirah and the Bahir. His engaging writing style and clear explanations helped rejuvenate interest in Jewish mysticism and practice among English-speaking Jews around the world. Rabbi Kaplan was praised for his intellectual rigor, spiritual insights, and his ability to bridge the gap between traditional Jewish thought and the modern world.