When Kailash Kher starts talking about music, it is tempting to dismiss him as someone waxing philosophical about metaphysical concepts, without any substance behind his words. But after a few minutes of listening, it becomes clear that he is the real deal. This palpable enthusiasm comes from a man who sees music as food for the soul, and an ultimate expression of spirituality.

“Music is to me is not just a source of entertainment, it is also a source of enlightenment,” said Kher, who performs next Tuesday at the Lisner Auditorium. “Music is a form of nature and a form of pure emotion within every soul.”

Kher’s beliefs and passion are rooted in Sufism, the ancient and mystical form of Islam that gave rise to Rumi, and other poets who believed that artistic expression is a path to enlightenment and salvation. Kher’s father was a folk singer, and Kher himself began singing at age 5. While growing up in India, the popular taste became increasingly westernized, but it was traditional Sufi music that inspired Kher.

“I didn’t know who M.J. was until 2001,” said the 36-year old singer.

That same year, Kher’s passion for music led him to Mumbai, where he struggled initially as a musician, unable to fit into the mainstream. As it turns out, his provincial background ended up reaping huge dividends. He credits his “unadulterated and uninfluenced” sound for landing him session work, singing for Bollywood musicals. These songs became hits, and by 2004, Kher was topping the charts in India.

“From the beginning, I have tried to do something that was unique, new and rare,” Kher said. “People cannot get bored easily with my style of work.”