My mother grew up in India. There were apparently some asectic 'sages' that would play with mercury she told me about. I don't really know what they were doing,

My mother grew up in India. There were apparently some asectic 'sages' that would play with mercury she told me about. I don't really know what they were doing, just that my mom always remarked that she didn't understand how they would hold the mercury in their hands and seem to be fine. There's apparently something to it, whether it's a trick or otherwise.