Yantra
Yantras are mystical diagrams, often geometric, used in Hindu, Buddhist, and other spiritual traditions as tools for meditation, worship, and spiritual growth. The term "Yantra" comes from the Sanskrit words "Y", meaning "to control," and "Tra", meaning "instrument" or "tool." In Vastu Shastra, yantras (geometric diagrams) are believed to harmonize energies, correct architectural flaws, and promote positive vibrations within a space, potentially leading to improved health, prosperity, and well-being.