It's a heterodox religion of India. About the time Buddhism came around, probably much earlier, but no one knows for sure, Jainism emerged. Like all religions, you end up with a very muddled view of it by only reading one person's quick pic of it, but here goes:

Jainists believe that Kevala, or salvation, is possible because of several saintly figures called Tirthankaras, or "fordfinders," great men who have found fords that can cross between the misery of the material world and the nonkarmic world beyond, where all is bliss. They are strict vegans and part of the religion makes occasional tiem spent as a monk compulsory. Monks are often seen wearing a cloth over their mouth to avoid inadvertantly eating tiny living things, they also sweep the ground in front of them to push aside small living creatures so that they don't step on them. To a Jainist, not only is intentional harm to living things evil, but unintentional harm to living things can cause your soul harm as well. The preferred method of "checking out" is self-starvation while in standing meditation. No one actually does this any more, but the Tirthankaras are very important because they actually had the kind of self-control, good will and empathy for the world that they would do this to themselves. Current Jainists believe that salvation will not be possible for several thousand more years, as we are passing through a particularly corrupt and vile period in existence. They also believe in no end or beginning of time or the Universe, merely cycles.

They say that the self is great and blissful and wonderous, but karma obscures our wonderful essence. Where Buddhists and Hindus believe that we should build up good karma by doing good things so that we have increasingly good chances of achieving salvation, Jains believe that salvation is achieved by doing as little as possible, erasing all karma from our record so that there is nothing holding us down, not even our bodies.