This stone polished by a thousand years of water currents of eternity is the silence of the earth made tangible! Narmada stone harmonizes the Yin and Yang, blending masculine and feminine forces within the body. Placing tumble stones in homes or offices is believed to neutralize negative energies, remove Vastu doshas, and protect against the "evil eye". It is believed to deepen meditation practices and induce mental clarity of the ones graced by this stone.