Why is bathing at Prayagraj during a solar eclipse especially auspicious?

Prayagraj Triveni Sangam, where the Ganga, Yamuna, and invisible Saraswati converge, is described in the Puranas as the most sacred bathing site in creation. Bathing at the Sangam during a solar eclipse yields merit equivalent to the great Ashwamedha yajna. The triple river convergence amplifies the purifying power of eclipse snan beyond any single river site.