“In the Tarot of the Bohemians “The Tetragrammaton, the four-letter Hebrew name of God (יהוה), transliterated as Yod-He-Vau-He, plays a central role in the sources' explanation of the Tarot's structure and symbolism. It is presented as the foundational principle underlying the entire system, revealing the interconnectedness of the divine, human, and universal realms.