Sabab...

Poochho na unki be-rukhi¹ ka sabab² humse,
Yeh to Khuda jaane ya sanam jaane...

1--> Ignorance/Anger
2--> Meaning

Arzoo...

Rakhein kya arzoo¹ aftaab² se hum,
Jab dekhe hain chand mehtaab³ rang badalte huye....

1--> Hope
2--> Sun (Symbolically not so friendly people)
3--> Moonlight (Symbolically closest one)