Thou had gone a little ahead. The lads mistook the huge body of the Asura for a mountain and its large spread out mouth for a cave. In their eagerness to explore the woods, they entered the python's open mouth.
The Gopa boys along with the calves had entered the belly of the snake by mistake and started to feel the heat therein. O Lord! Apprehending the situation, Thou also entered immediately to save the helpless friends.