Pilgrims believe that by attending the festival and bathing in the waters of the rivers that run through Allahabad or the other host cities, they will cleanse away their sins and bring salvation.

BBC: India hosts the world��s biggest gathering

Yeoh doesn't give away many, but she tells People that she is careful to thoroughly cleanse her skin before turning in for the night.

CNN: PEOPLE

It's said that a shower in your underwear under the lower waterfall will wash away bad luck and illness, while bathing naked under the upper waterfall will cleanse your soul.

BBC: Otavalo: The land of Andean artistry