Vaitarani

In Hindu mythology, a river flowing
through the underworld over which
souls must cross on the way to their
audience with the god Yama, the god of
the dead. For righteous people the
crossing is fairly easy, and they are widely
believed to get over by holding the tail
of a cow. For wicked people, on the
other hand, the Vaitarani is a river of
pus, blood, spit, and other polluting
substances, in which various ferocious
beasts lie in wait.