Yantra is made and then prayers are done in front of the Yantra. Yantras are kept in the house. Its vibrations are there. But more than Yantras is your meditation. If you do meditation, then Yantras are made in your body.
Yantra is made and then prayers are done in front of the Yantra. Yantras are kept in the house. Its vibrations are there. But more than Yantras is your meditation. If you do meditation, then Yantras are made in your body.