The Yantras software program describes yantras and how the yantras can be used to activate the chakras or to induce certain conditions or healing. The yantras software includes accurate graphics and specific sound keys (mantras). Yantras software can be downloaded and integrated with the Yoga software program. Yantras is shareware - Yoga is freeware. Yantras and Chakras are available in one package. Chakras and Yantras are available in one package and sell for $13.95 Canadian / US $10.00.