According to mythology, the gods and demons once churned the oceans to retrieve a pitcher containing the nectar of immortality - amrit -- after which a struggle ensued between the two to wrest control of this pitcher. It is said that during the scuffle, a few drops of amrit were spilled at places, making them hallowed and sacred. The waters at the Sangam are believed to have received the amrit too and a dip in these holy waters during the Kumbh is believed to cleanse and purify the soul.
Brahma is said to have called this spot Tirth Raj, or 'King of Pilgrimage sites'. The holy confluence draws pilgrims at all times, specially during the Kumbh Mela time when loyal pilgrims gather here to offer their penances and seek blessings.
It is believed that it is at the Sangam, that a few drops of the nectar 'Amrit Bindu' fell making its waters truly spiritual and replete with soul-cleansing powers.
During the month of Magha (Mid Jan to Mid Feb) hundreds of thousands of pilgrims come to the bath at this holy confluence for the festival known as Magh Mela.
The most propitious time of all happens every 12 years when the massive Kumbh Mela takes place. At this time the Sangam truly comes alive and attracts the devout/tourists from all over the world. Millions of devotees bathe ritually in the waters to break the eternal cycle of reincarnation.