What's the difference between i.e. and e.g.?
a geometric diagram used in meditation and tantric worship; also, any object used in this way
1877; Sanskrit 'device for holding'
in Tantric Hinduism and Vajrayana, or Tantric Buddhism, a linear diagram used as a support for ritual. In its more elaborate and pictorial form it is called a mandala. Yantras range from those traced on the ground or on paper and disposed of after the rite, to those etched in stone and metal, such as are found in temples.