Hi Kess,
I have meditated at the Earth Peace temple in the Siddhanath ashram, near Pune, India. Erected there is a 1-ton mercury Shivling. When you come into its presence, you feel the difference. It emits peace. It is palpable. Your mind becomes stiller. Fewer thoughts. You become more and more aware of Consciousness. Gazing at the Shivling, I even saw a lion-face and the faces of great sages.
Yogiraj Gurunath Siddhanath erected this Shivling for Earth Peace, ie to assist Humanity in reaching peace of mind.
He says he solidified mercury with herbs, lime, chanting mantras and intense meditation.
My feeling is that his consciousness pours out of the Shivling.
Peace of breath,
mini-mike