After having ascertained the intensity and sincerity of love and affection that Sita had for him, Raghubir (the brave warrior of king Raghu’s dynasty; Lord Sri Ram) broke the bow just like a lion’s cub kills a huge elephant. (The lion jumps on the back of an elephant and kills it. Here, Lord Ram is compared to the lion’s cub because just like the cub being the son of the king of the forest, the lion, Lord Ram is also a ‘son of a king, king Dasrath of the Raghu dynasty’, and the bow is compared to the mighty elephant.)