In the Vaishnava tradition of what most of us know today as the religion of Hinduism, it is said that the only thing that a person needs to do in order to break the cycle of rebirth and to therefore attain what some would call salvation, is to recite (chant) the "Great Mantra", which is known as the "Maha Mantra".
It is said that by reciting this Mantra all of one's "sins" are forgiven and that over time constant reciting (chanting) of this Mantra will draw us closer to "God".
The Mantra is as follows:
Hare Krishna Hare Krishna
Hare Rama Hare Rama