In India, it is tradition that prior to entering any sacred space, one is required to wet the entire body to help make one more receptive to the energies of the space.

The Theerthakund, a subterranean water body, with a solidified mercury lingam immersed in water, was built as a preparatory tool to enhance spiritual receptivity in a person before entering the Dhyanalinga. The Theerthakund is also very powerful by itself – it straightens out the energy or the pranic imbalances in a person, which leads to physical and mental wellbeing. Above all, it creates a tremendous receptivity to imbibe the energies of Dhyanalinga.

Opened to the public in March 2006, this unique underground pool specially consecrated by Sadhguru has been the source of deep spiritual experiences for many. The Theerthakund is energized by a submerged Rasalinga, allowing it to retain these energies almost eternally. Built as a vaulted structure that shares the same aesthetics and building principles as the Dhyanalinga, it employs simple, natural materials and earthy colors.

In December 2012, Sadhguru consecrated the Suryakund, a new Theerthakund for men. The existing Theertakund was converted into the Chandrakund for women. The energies of the Suryakund are essentially masculine in nature, whereas the energies of the Chandrakund are feminine in nature.