Entering the city of Larkā that one (ever) compassing the welfare of the monkey-king, set his left foot on the heads of his foes. * *The literal meaning is that, leaping over the wall, Hanumān, first set his left foot on the hostile soil; and this act of his, as tending to the discomfiture of the foe, is looked upon by the author in the light of Hanumān setting his left foot on the heads of the Rāks asas. The setting of the left foot on an enemy's dominions, is considered by the scriptures as very inauspicious.
प्रविश्य नगरी लङ्कां कपिराजहितंकरः। चक्रेऽथ पादं सव्यं च शत्रूणां स तु मूर्धनि ॥