In the ending scene of the Bollywood film Masaan aka Fly Away Solo two characters, a boy and girl, take a ride to the river coast at another side of Ganga in a boat. The boy says that
वैसे संगम दो बार आना चाहिए, एक बार अकेले, और एक बार किसी और के साथ
Translation: One should come twice to the Sangam, once alone and once with someone else.
What's the significance of that dialogue?