https://youtu.be/7MHOBGJjJLM?si=wULYQQyO51qGRfuU
Yantras are geometric diagrams, usually made of metal, which are used in various Indian religions for meditation, concentration, and devotion. They are considered to represent the universe and are used as tools to focus the mind on spiritual concepts. The design of each yantra is intended to draw the eye and mind to the center, or to ascend through the levels of the diagram to the highest spiritual state.