In Hasidic Judaism, there is a tradition that teaches that when God revealed himself to Moses at Mount Sinai, he showed him a garment made entirely of letters, which represented the Torah. This garment is sometimes referred to as the "garment of light" or "garment of glory."
According to this tradition, the letters on the garment were not static, but moved and changed in response to the thoughts and actions of human beings. This represents the idea that the Torah is a living document that continues to evolve and change in response to the needs of each generation.
Hasidic Judaism places a great emphasis on the study and observance of the Torah, and the revelation of the garment to Moses is seen as a powerful symbol of the importance of the Torah in the lives of Jews. The Hasidic approach to Judaism emphasizes the personal and emotional aspects of religious practice, and the revelation of the garment is often seen as a reminder of the deep spiritual connection that exists between God and the Jewish people.