The Sanskrit writing along the right hand side of the painting is the mantra “Om Namah Shivaya”. I am beginning to transform as Shiva energy destroys the old debris from conditioned existence. I will not die from the poison I have drunk.
During the churning of the ocean or Samudra Manthan, a dangerous poison, Halahala, emitted from the ocean. This terrified the gods and demons because the poison was so toxic that it would have destroyed all of creation. Lord Vishnu told the gods that only Lord Shiva could save them from the destruction. Lord Shiva on hearing the pleas of the gods decided to swallow the poison. Goddess Parvati panicked, but he assured her that he won’t die of the poison. He stored the poison in his throat, which turned blue. Thus Lord Shiva is also known as Neelkantha, the one with blue throat.