The mantra that Lord Shiva used for meditation In the Vijnana Bhairava Tantra, Bhairavi asks Shiva, "I have come to you to receive a guru mantra. Since you always practice sadhana, what is your mantra?" Shiva replied, "My meditation mantra is Soham." Anyone can use this mantra. There is no need to take a deep breath while reciting it. Just straighten your spine, close your eyes and focus your attention on your forehead. When you inhale, the sound will come out as 'so' and when you exhale, the so