Bathing or morning cleansing with water, in Hinduism, is an everyday obligation, a rite of spiritual purification, and a form of ablution. It is symbolic atonement or amends or reparation made for an injury or wrong thoughts and deeds.
In the Christian tradition atonement means that reconciliation with God is accomplished through the death of Christ. Day of Atonement is a Jewish holiday akin to spiritual spring cleansing. In Hinduism, people bathe in the holy River Ganges to atone for their errors and sins.