Narayanan Krishnan was a bright, young, award-winning chef with a five-star hotel group, short-listed for an elite job in Switzerland. But a quick family visit home before heading to Europe changed everything.

"I saw a very old man eating his own human waste for food," Krishnan said. "It really hurt me so much. I was literally shocked for a second. After that, I started feeding that man and decided this is what I should do the rest of my lifetime."

Krishnan was visiting a temple in the south Indian city of Madurai in 2002 when he saw the man under a bridge. Haunted by the image, Krishnan quit his job within the week and returned home for good, convinced of his new destiny.

"That spark and that inspiration is a driving force still inside me as a flame -- to serve all the mentally ill destitutes and people who cannot take care of themselves," Krishnan said.

Watch the video here: http://www.youtube.com/watch?v=y_3BEwpv0dM