We live because there is always a hope around. Life may be tough but this toughness is softened because we see, or try to see, some rays of hope even in the clouds that hang low and heavy. It applies to all of us including the lovers who would perish if left in lurch without hope of union. You may be interested in looking at these verses.
hogī ik din ghar mire phūloñ kī barsāt
maiñ paglā is aas meñ hañstā huuñ din raat
hogi ek din ghar mere phulon ki barsat
main pagla is aas mein hansta hun din raat