Bollywood director Ayan Mukerji, on Sunday, dropped a long note stating why the new song 'Deva Deva' from 'Brahmastra Part One: Shiva' is the soul of the film.

Taking to Instagram, the 'Wake Up Sid' director shared a motion poster of 'Deva Deva', which he captioned, "A song in which our protagonist Shiva finally unlocks his Powers. And in doing this, he fills all the Fire around him with Divine Energy. *Like Lord Shiva sitting cross-legged in dhyaan... the first image of meditation in this entire Universe... A Song in which our hero Shiva achieves his Potential by understanding that to control the Fire outside, he needs to first... Feel the Fire Within! A Song that has given me so much Energy since Pritam (Dada) created it...