The Sangam is the very heart of Tarpan in Prayagraj. The combined waters are considered supremely sacred and purifying. Offering Tarpan directly into the Sangam is believed to:
Multiply the spiritual merit (Punya) manifold.
Directly nourish and satisfy the ancestors due to the combined divine energies of the rivers.
Effectively cleanse the sins of both the ancestors and the performer.
Serve as a direct gateway for ancestors towards higher realms or liberation. A holy dip (Snan) at the Sangam is almost always performed alongside Tarpan.