In mantra sastra, the method of worshipping Kurma Yantras
has been described. In temples, the Dwajasthambam (flag post), when building
huge houses or industrial workshops, malls or big buildings in the eastern
direction of the foundation, it has become a tradition to consecrate Kurma Yantras
along with Matsya Yantra.
Since Maha Vishnu has taken Kurma Avatara and Matsya Avatara,
by placing the Kurma Yantra and Matsya Yantra, Maha Vishnu himself becomes the guardian
of the temple and the mansion or building.
Lord Vishnu sees to it that there is never lack of water in
the place. The place becomes auspicious and healthy due to his presence. As the
guardian deity He chases away all evil and negative energy, so that the area
gains in prosperity and prominence. He also protects the building from all
kinds of enemy activities.