In Hindu and Tantric traditions, a Yantra is a geometric diagram composed of interlocking triangles, circles, lotus petals, and other shapes that represent cosmic truths and divine energies. Each Yantra is associated with a specific deity or planetary energy. The Sri Yantra (representing Goddess Lakshmi and the cosmos) is considered the most powerful. Yantras are used in meditation, worship, and as Vedic astrological remedies.