देख तो दिल कि जाँ से उठता है
ये धुआँ सा कहाँ से उठता है
...मीर तक़ी मीर
जाँ : soul , life
Detachment of heart from the soul ( alienation from the materialist world, caused due to the indifference from beloved as it is end of the world ) , metaphorically represented in the invisible smoke arises due to the burning of all feelings.