Lord Shiva is one of the most important Hindu Deities is known by many names and appearances, In his form of "Pranava" Shiva is the creator of Omkara also known as "Aum or Hum" mantra in it's most sacret state of "OM" and is the seed of the "Om Namah Shivaya mantra". Shiva is also considered the greatest of the yogis and the master of meditation.